Finding the Third Proportional to 31,747,216 and 68,906,528

Step by Step Solution

1. Step 1: Write the proportion equation
   31,747,216 : 68,906,528 = 68,906,528 : x
2. Step 2: Convert to fraction form
   31,747,216/68,906,528 = 68,906,528/x
3. Step 3: Cross multiply
   31,747,216x = 68,906,528 × 68,906,528
4. Step 4: Simplify right side
   31,747,216x = 4,748,109,601,014,784
5. Step 5: Solve for x
   x = 4,748,109,601,014,784/31,747,216
6. Step 6: Final answer
   x = 149,559,873.25