Finding the Third Proportional to 81,285 and 110,737.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,285 : 110,737.50 = 110,737.50 : x
2. Step 2: Convert to fraction form
   81,285/110,737.50 = 110,737.50/x
3. Step 3: Cross multiply
   81,285x = 110,737.50 × 110,737.50
4. Step 4: Simplify right side
   81,285x = 12,262,793,906.25
5. Step 5: Solve for x
   x = 12,262,793,906.25/81,285
6. Step 6: Final answer
   x = 150,861.71