Finding the Third Proportional to 4,471,720 and 9,651,664

Step by Step Solution

1. Step 1: Write the proportion equation
   4,471,720 : 9,651,664 = 9,651,664 : x
2. Step 2: Convert to fraction form
   4,471,720/9,651,664 = 9,651,664/x
3. Step 3: Cross multiply
   4,471,720x = 9,651,664 × 9,651,664
4. Step 4: Simplify right side
   4,471,720x = 93,154,617,968,896
5. Step 5: Solve for x
   x = 93,154,617,968,896/4,471,720
6. Step 6: Final answer
   x = 20,831,943.41