Finding the Third Proportional to 404,872 and 865,792

Step by Step Solution

1. Step 1: Write the proportion equation
   404,872 : 865,792 = 865,792 : x
2. Step 2: Convert to fraction form
   404,872/865,792 = 865,792/x
3. Step 3: Cross multiply
   404,872x = 865,792 × 865,792
4. Step 4: Simplify right side
   404,872x = 749,595,787,264
5. Step 5: Solve for x
   x = 749,595,787,264/404,872
6. Step 6: Final answer
   x = 1,851,438.94