Finding the Third Proportional to 31,747,136 and 68,906,368

Step by Step Solution

1. Step 1: Write the proportion equation
   31,747,136 : 68,906,368 = 68,906,368 : x
2. Step 2: Convert to fraction form
   31,747,136/68,906,368 = 68,906,368/x
3. Step 3: Cross multiply
   31,747,136x = 68,906,368 × 68,906,368
4. Step 4: Simplify right side
   31,747,136x = 4,748,087,550,951,424
5. Step 5: Solve for x
   x = 4,748,087,550,951,424/31,747,136
6. Step 6: Final answer
   x = 149,559,555.58