Finding the Third Proportional to 187,885.69 and 394,234.31

Step by Step Solution

1. Step 1: Write the proportion equation
   187,885.69 : 394,234.31 = 394,234.31 : x
2. Step 2: Convert to fraction form
   187,885.69/394,234.31 = 394,234.31/x
3. Step 3: Cross multiply
   187,885.69x = 394,234.31 × 394,234.31
4. Step 4: Simplify right side
   187,885.69x = 155,420,693,152.35
5. Step 5: Solve for x
   x = 155,420,693,152.35/187,885.69
6. Step 6: Final answer
   x = 827,208.79