en_tn_condensed/1ki/01/46.md

General Information:

Jonathan continues to speak to Adonijah about Solomon.

is sitting on the throne of the kingdom

Possible meanings are 1) that these words are a metonym for being king. See how you translated similar words in 1 Kings 1:35. Alternate translation: "is now king" or 2) that Solomon was physically sitting on the physical throne. (See: rc://en/ta/man/translate/figs-metonymy)