Finding the Third Proportional to 647,688 and 980,568

Step by Step Solution

1. Step 1: Write the proportion equation
   647,688 : 980,568 = 980,568 : x
2. Step 2: Convert to fraction form
   647,688/980,568 = 980,568/x
3. Step 3: Cross multiply
   647,688x = 980,568 × 980,568
4. Step 4: Simplify right side
   647,688x = 961,513,602,624
5. Step 5: Solve for x
   x = 961,513,602,624/647,688
6. Step 6: Final answer
   x = 1,484,532.06