Finding the Third Proportional to 174,940.50 and 278,499

Step by Step Solution

1. Step 1: Write the proportion equation
   174,940.50 : 278,499 = 278,499 : x
2. Step 2: Convert to fraction form
   174,940.50/278,499 = 278,499/x
3. Step 3: Cross multiply
   174,940.50x = 278,499 × 278,499
4. Step 4: Simplify right side
   174,940.50x = 77,561,693,001
5. Step 5: Solve for x
   x = 77,561,693,001/174,940.50
6. Step 6: Final answer
   x = 443,360.42