On what page do Ron Weasley and Hermione Granger get married?

The exact date of George Weasley marrying Angelina Johnson is unknown. However, we can make an educated estimation:

JK Rowling stated in an interview that all of the second generation Weasley children who survived the Second Wizarding War (William, Charles, Percy, George, Ronald, and Ginevra) married in their early- or mid-twenties. Since George is born in 1978, his date of marriage would roughly be anywhere between May 2, 1998 (after the Battle of Hogwarts and when George was 20, in his earliest twenties) and 2006 (when George was 28, in his early late twenties).