Finding the Third Proportional to 404,328 and 867,705

Step by Step Solution

1. Step 1: Write the proportion equation
   404,328 : 867,705 = 867,705 : x
2. Step 2: Convert to fraction form
   404,328/867,705 = 867,705/x
3. Step 3: Cross multiply
   404,328x = 867,705 × 867,705
4. Step 4: Simplify right side
   404,328x = 752,911,967,025
5. Step 5: Solve for x
   x = 752,911,967,025/404,328
6. Step 6: Final answer
   x = 1,862,131.65