Finding the Third Proportional to 267,663.50 and 394,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   267,663.50 : 394,100.50 = 394,100.50 : x
2. Step 2: Convert to fraction form
   267,663.50/394,100.50 = 394,100.50/x
3. Step 3: Cross multiply
   267,663.50x = 394,100.50 × 394,100.50
4. Step 4: Simplify right side
   267,663.50x = 155,315,204,100.25
5. Step 5: Solve for x
   x = 155,315,204,100.25/267,663.50
6. Step 6: Final answer
   x = 580,262.92