Finding the Third Proportional to 90,153 and 140,332.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,153 : 140,332.50 = 140,332.50 : x
2. Step 2: Convert to fraction form
   90,153/140,332.50 = 140,332.50/x
3. Step 3: Cross multiply
   90,153x = 140,332.50 × 140,332.50
4. Step 4: Simplify right side
   90,153x = 19,693,210,556.25
5. Step 5: Solve for x
   x = 19,693,210,556.25/90,153
6. Step 6: Final answer
   x = 218,442.10