Finding the Third Proportional to 90,733.50 and 140,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,733.50 : 140,359.50 = 140,359.50 : x
2. Step 2: Convert to fraction form
   90,733.50/140,359.50 = 140,359.50/x
3. Step 3: Cross multiply
   90,733.50x = 140,359.50 × 140,359.50
4. Step 4: Simplify right side
   90,733.50x = 19,700,789,240.25
5. Step 5: Solve for x
   x = 19,700,789,240.25/90,733.50
6. Step 6: Final answer
   x = 217,128.06