Complex sentence: Consolidation gave Jacksonville its great size and placed most of its metropolitan population within the city limits; with an estimated population of 913,010 as of 2017, Jacksonville is the most populous city in the state of Florida and the southeastern United States.
Split into simpler sentences: Consolidation gave Jacksonville its great size and placed most of its metropolitan population within the city limits. With an estimated population of 913,010 as of 2017, Jacksonville is also the most populous city in the southeastern United States.