CREATE TABLE table_6225 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Attendance" FLOAT)

Game site of miami orange bowl, and a Attendance larger than 49,754 happened on what highest week?
SELECT MAX("Week") FROM table_6225 WHERE "Game site" = 'miami orange bowl' AND "Attendance" > '49,754'
SELECT MAX("Week") FROM "table_6225" WHERE "Attendance" > '49,754' AND "Game site" = 'miami orange bowl'