Finding the Third Proportional to 66,049.50 and 102,315

Step by Step Solution

1. Step 1: Write the proportion equation
   66,049.50 : 102,315 = 102,315 : x
2. Step 2: Convert to fraction form
   66,049.50/102,315 = 102,315/x
3. Step 3: Cross multiply
   66,049.50x = 102,315 × 102,315
4. Step 4: Simplify right side
   66,049.50x = 10,468,359,225
5. Step 5: Solve for x
   x = 10,468,359,225/66,049.50
6. Step 6: Final answer
   x = 158,492.63