Finding the Third Proportional to 60,902,538 and 89,671,599

Step by Step Solution

1. Step 1: Write the proportion equation
   60,902,538 : 89,671,599 = 89,671,599 : x
2. Step 2: Convert to fraction form
   60,902,538/89,671,599 = 89,671,599/x
3. Step 3: Cross multiply
   60,902,538x = 89,671,599 × 89,671,599
4. Step 4: Simplify right side
   60,902,538x = 8,040,995,667,216,801
5. Step 5: Solve for x
   x = 8,040,995,667,216,801/60,902,538
6. Step 6: Final answer
   x = 132,030,551.29