Finding the Third Proportional to 238,909.50 and 361,422

Step by Step Solution

1. Step 1: Write the proportion equation
   238,909.50 : 361,422 = 361,422 : x
2. Step 2: Convert to fraction form
   238,909.50/361,422 = 361,422/x
3. Step 3: Cross multiply
   238,909.50x = 361,422 × 361,422
4. Step 4: Simplify right side
   238,909.50x = 130,625,862,084
5. Step 5: Solve for x
   x = 130,625,862,084/238,909.50
6. Step 6: Final answer
   x = 546,758.76