Finding the Third Proportional to 484,519.50 and 678,960

Step by Step Solution

1. Step 1: Write the proportion equation
   484,519.50 : 678,960 = 678,960 : x
2. Step 2: Convert to fraction form
   484,519.50/678,960 = 678,960/x
3. Step 3: Cross multiply
   484,519.50x = 678,960 × 678,960
4. Step 4: Simplify right side
   484,519.50x = 460,986,681,600
5. Step 5: Solve for x
   x = 460,986,681,600/484,519.50
6. Step 6: Final answer
   x = 951,430.61