Finding the Third Proportional to 87,253 and 138,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,253 : 138,385.50 = 138,385.50 : x
2. Step 2: Convert to fraction form
   87,253/138,385.50 = 138,385.50/x
3. Step 3: Cross multiply
   87,253x = 138,385.50 × 138,385.50
4. Step 4: Simplify right side
   87,253x = 19,150,546,610.25
5. Step 5: Solve for x
   x = 19,150,546,610.25/87,253
6. Step 6: Final answer
   x = 219,482.96