Finding the Third Proportional to 275,575.50 and 394,908

Step by Step Solution

1. Step 1: Write the proportion equation
   275,575.50 : 394,908 = 394,908 : x
2. Step 2: Convert to fraction form
   275,575.50/394,908 = 394,908/x
3. Step 3: Cross multiply
   275,575.50x = 394,908 × 394,908
4. Step 4: Simplify right side
   275,575.50x = 155,952,328,464
5. Step 5: Solve for x
   x = 155,952,328,464/275,575.50
6. Step 6: Final answer
   x = 565,915.07