Finding the Third Proportional to 71,357 and 111,120.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,357 : 111,120.50 = 111,120.50 : x
2. Step 2: Convert to fraction form
   71,357/111,120.50 = 111,120.50/x
3. Step 3: Cross multiply
   71,357x = 111,120.50 × 111,120.50
4. Step 4: Simplify right side
   71,357x = 12,347,765,520.25
5. Step 5: Solve for x
   x = 12,347,765,520.25/71,357
6. Step 6: Final answer
   x = 173,042.11