First the city, that's proved that it's big enough to host the volume up of athletics and spectators. Next the city must convince its taxpayers that the income from the Olympics will offset the expenses necessary to build any additional structures for competition, locations and lodging. Finally, the city must prove it's worth as a positive presence on the World stage, what text structure does the third paragraph demonstrate is it problem solution compare contrast cause effect or sequence

The text structure of the third paragraph appears to be a cause-effect structure. The paragraph discusses how the city must prove itself as a positive presence on the World stage. The cause in this case is the city's actions and efforts to showcase itself, and the effect is the desired outcome of being seen as a positive entity on the global stage.