Finding the Third Proportional to 198,831.50 and 301,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   198,831.50 : 301,141.50 = 301,141.50 : x
2. Step 2: Convert to fraction form
   198,831.50/301,141.50 = 301,141.50/x
3. Step 3: Cross multiply
   198,831.50x = 301,141.50 × 301,141.50
4. Step 4: Simplify right side
   198,831.50x = 90,686,203,022.25
5. Step 5: Solve for x
   x = 90,686,203,022.25/198,831.50
6. Step 6: Final answer
   x = 456,095.75