Finding the Third Proportional to 172,080 and 404,861

Step by Step Solution

1. Step 1: Write the proportion equation
   172,080 : 404,861 = 404,861 : x
2. Step 2: Convert to fraction form
   172,080/404,861 = 404,861/x
3. Step 3: Cross multiply
   172,080x = 404,861 × 404,861
4. Step 4: Simplify right side
   172,080x = 163,912,429,321
5. Step 5: Solve for x
   x = 163,912,429,321/172,080
6. Step 6: Final answer
   x = 952,536.20