Finding the Third Proportional to 172,020 and 404,749

Step by Step Solution

1. Step 1: Write the proportion equation
   172,020 : 404,749 = 404,749 : x
2. Step 2: Convert to fraction form
   172,020/404,749 = 404,749/x
3. Step 3: Cross multiply
   172,020x = 404,749 × 404,749
4. Step 4: Simplify right side
   172,020x = 163,821,753,001
5. Step 5: Solve for x
   x = 163,821,753,001/172,020
6. Step 6: Final answer
   x = 952,341.31