Complex sentence: Reno is the most populous Nevada city outside of the Las Vegas metropolitan area, with an estimated population of 233,294 in 2013, and is the third most populous city in the state after Las Vegas and Henderson.
Split into simpler sentences: Reno is the most populous Nevada city outside of the Las Vegas metropolitan area. With an estimated population of 233,294 in 2013, Reno is the third most populous city in the state after Las Vegas and Henderson.