Final answer:
A Lieutenant Commander in the Navy is equivalent in paygrade to a Commander (O-5), positioned between Lieutenant and Captain ranks.
Step-by-step explanation:
A Lieutenant Commander in the Navy is equivalent in paygrade to a Commander (O-5). This rank is directly above that of a Lieutenant and below that of a Captain. In the hierarchical structure of the Navy, each rank corresponds to a specific pay grade, and the ranks serve as an indicator of authority, responsibility, and leadership experience within the service. A Lieutenant Commander in the Navy is equivalent in paygrade to a Commander (O-5), positioned between Lieutenant and Captain ranks.