Finding the Third Proportional to 60,415,388 and 89,490,569

Step by Step Solution

1. Step 1: Write the proportion equation
   60,415,388 : 89,490,569 = 89,490,569 : x
2. Step 2: Convert to fraction form
   60,415,388/89,490,569 = 89,490,569/x
3. Step 3: Cross multiply
   60,415,388x = 89,490,569 × 89,490,569
4. Step 4: Simplify right side
   60,415,388x = 8,008,561,939,943,761
5. Step 5: Solve for x
   x = 8,008,561,939,943,761/60,415,388
6. Step 6: Final answer
   x = 132,558,313.45