In this case, you are asked to bring the area with m2 unit but the length(120yd) and width(50yd) are in yd. Then, you need to convert the unit into m2. The formula of rectangle area should be length * width.
So, the equation should be:
area = length * width= (120yd * 91.44cm/yd * 1m/100cm) * (50yd * 91.44cm/yd * 1m/100cm) = 5016.76 m2