Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_1802760_3 (state__class_ VARCHAR, date_of_successors_formal_installation VARCHAR)
### Question:
Where was the successor formally installed on December 3, 1858?
### Answer:
SELECT state__class_ FROM table_1802760_3 WHERE date_of_successors_formal_installation = "December 3, 1858"