Finding the Third Proportional to 59,638.50 and 89,457.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,638.50 : 89,457.75 = 89,457.75 : x
2. Step 2: Convert to fraction form
   59,638.50/89,457.75 = 89,457.75/x
3. Step 3: Cross multiply
   59,638.50x = 89,457.75 × 89,457.75
4. Step 4: Simplify right side
   59,638.50x = 8,002,689,035.06
5. Step 5: Solve for x
   x = 8,002,689,035.06/59,638.50
6. Step 6: Final answer
   x = 134,186.63