Finding the Third Proportional to 172,524 and 375,422

Step by Step Solution

1. Step 1: Write the proportion equation
   172,524 : 375,422 = 375,422 : x
2. Step 2: Convert to fraction form
   172,524/375,422 = 375,422/x
3. Step 3: Cross multiply
   172,524x = 375,422 × 375,422
4. Step 4: Simplify right side
   172,524x = 140,941,678,084
5. Step 5: Solve for x
   x = 140,941,678,084/172,524
6. Step 6: Final answer
   x = 816,939.55