Finding the Third Proportional to 172,008 and 404,719

Step by Step Solution

1. Step 1: Write the proportion equation
   172,008 : 404,719 = 404,719 : x
2. Step 2: Convert to fraction form
   172,008/404,719 = 404,719/x
3. Step 3: Cross multiply
   172,008x = 404,719 × 404,719
4. Step 4: Simplify right side
   172,008x = 163,797,468,961
5. Step 5: Solve for x
   x = 163,797,468,961/172,008
6. Step 6: Final answer
   x = 952,266.57