Finding the Third Proportional to 172,040 and 404,775

Step by Step Solution

1. Step 1: Write the proportion equation
   172,040 : 404,775 = 404,775 : x
2. Step 2: Convert to fraction form
   172,040/404,775 = 404,775/x
3. Step 3: Cross multiply
   172,040x = 404,775 × 404,775
4. Step 4: Simplify right side
   172,040x = 163,842,800,625
5. Step 5: Solve for x
   x = 163,842,800,625/172,040
6. Step 6: Final answer
   x = 952,352.94