Finding the Third Proportional to 103,540.78 and 223,398

Step by Step Solution

1. Step 1: Write the proportion equation
   103,540.78 : 223,398 = 223,398 : x
2. Step 2: Convert to fraction form
   103,540.78/223,398 = 223,398/x
3. Step 3: Cross multiply
   103,540.78x = 223,398 × 223,398
4. Step 4: Simplify right side
   103,540.78x = 49,906,666,404
5. Step 5: Solve for x
   x = 49,906,666,404/103,540.78
6. Step 6: Final answer
   x = 482,000.10