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_2417345_3 (successor VARCHAR, date_of_successors_formal_installation VARCHAR)
### Question:
Who were the successors when the date the successors were installed was February 23, 1870?
### Answer:
SELECT successor FROM table_2417345_3 WHERE date_of_successors_formal_installation = "February 23, 1870"