Finding the Third Proportional to 111,270.38 and 243,862.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,270.38 : 243,862.31 = 243,862.31 : x
2. Step 2: Convert to fraction form
   111,270.38/243,862.31 = 243,862.31/x
3. Step 3: Cross multiply
   111,270.38x = 243,862.31 × 243,862.31
4. Step 4: Simplify right side
   111,270.38x = 59,468,827,457.85
5. Step 5: Solve for x
   x = 59,468,827,457.85/111,270.38
6. Step 6: Final answer
   x = 534,453.38