Finding the Third Proportional to 59,160 and 89,355

Step by Step Solution

1. Step 1: Write the proportion equation
   59,160 : 89,355 = 89,355 : x
2. Step 2: Convert to fraction form
   59,160/89,355 = 89,355/x
3. Step 3: Cross multiply
   59,160x = 89,355 × 89,355
4. Step 4: Simplify right side
   59,160x = 7,984,316,025
5. Step 5: Solve for x
   x = 7,984,316,025/59,160
6. Step 6: Final answer
   x = 134,961.39