Prokos was born to Greek parents who immigrated to the United States after World War II, settling in Chicago.

In July 2014 Prokos was one of 23 prominent Greek-Americans profiled in a documentary video series entitled Greeks Gone West, produced by the Embassy of the United States, Athens and Kathimerini newspaper.

This formed the basis of his conceptual photography series Inverted UAE, which went on to win numerous awards and be published in the Middle East, the UK and Europe including DesignBoom,[12] CNN,[13] and Harper's Bazaar Art.

[14][15] In an interview with Widewalls Art Magazine, Prokos noted that "...when the image is reflected, an entirely new and inherent structure and visual language emerge.

[18][19] Prokos' series "Night & Day", which utilizes multiple exposures captured over time to document the transition from day to night in various locations around the world, was selected for American Photography 31 [20] and was awarded two first-place finishes at the 2015 Prix de la Photographie People's Choice Awards.

[24] Prokos's series of fine-art architectural photographs based on the works of architect Frank Gehry, entitled Gehry's Children, was awarded a silver medal at the 2014 Prix de la Photographie, Paris (Px3) for his[25] and Honorable Mention at the 2014 International Photography Awards (Lucies).

Corporate art collections displaying Prokos's work include: Diageo North America, Invesco, JP Morgan Chase, Ralph Lauren Corp, Northwestern Mutual, Merrill Lynch & Co, Capital One Bank, Cisco Systems, the Federal Reserve Bank of New York, Hyatt Hotels, Kimpton Hotels, Moody's Corporation, Oppenheimer & Co. Inc. and numerous others.

In early 2022 Prokos was offered an extensive solo exhibition at the Xposure International Photography Festival in Sharjah, United Arab Emirates.

Prokos's large-scale black and white photography of New York's famous landmark buildings were on display in 50 inch wide photographs.

[42] In both 2012 and 2013 Prokos's photographs were selected by a jury panel to be exhibited in the ASMP gallery at the American Institute of Architects national convention.