Carlos Lopez-Cantera is now Florida's lieutenant governor.
Lopez-Cantera, a former state legislator and Miami-Dade property appraiser, was officially sworn on Monday.
Scott named Lopez-Cantera to the post in January. The job of lieutenant governor has been vacant since last March.
Lopez-Cantera was sworn in by 1st District Court of Appeal Chief Judge Joseph Lewis Jr. in a small, private ceremony held in the Governor's Office. The only attendees were family members.
Former lieutenant governor Jennifer Carroll abruptly resigned after she was interviewed by law-enforcement authorities about work she once did for a charity that prosecutors have said was a front for a widespread gambling ring. She has not been accused of any wrongdoing.
The 40-year-old Lopez-Cantera is the first Hispanic and Cuban-American to hold the post of lieutenant governor.