Finding the Third Proportional to 253,446 and 379,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,446 : 379,417.50 = 379,417.50 : x
2. Step 2: Convert to fraction form
   253,446/379,417.50 = 379,417.50/x
3. Step 3: Cross multiply
   253,446x = 379,417.50 × 379,417.50
4. Step 4: Simplify right side
   253,446x = 143,957,639,306.25
5. Step 5: Solve for x
   x = 143,957,639,306.25/253,446
6. Step 6: Final answer
   x = 568,001.23