Finding the Third Proportional to 4,216,500 and 9,272,664

Step by Step Solution

1. Step 1: Write the proportion equation
   4,216,500 : 9,272,664 = 9,272,664 : x
2. Step 2: Convert to fraction form
   4,216,500/9,272,664 = 9,272,664/x
3. Step 3: Cross multiply
   4,216,500x = 9,272,664 × 9,272,664
4. Step 4: Simplify right side
   4,216,500x = 85,982,297,656,896
5. Step 5: Solve for x
   x = 85,982,297,656,896/4,216,500
6. Step 6: Final answer
   x = 20,391,864.74