A Boeing 787-9 jetliner has a mass of 245,000 kg, including passengers. Its two engines produce a combined thrust force of 642 kN, and the aircraft cruises at 913 km/h in level flight - in which case, drag from the air is the only force the plane needs to overcome. Assume air resistance doesn't change - although in reality, it's greater at the higher speed.
Find the engines' power output while cruising.