Finding the Third Proportional to 413,988 and 854,404

Step by Step Solution

1. Step 1: Write the proportion equation
   413,988 : 854,404 = 854,404 : x
2. Step 2: Convert to fraction form
   413,988/854,404 = 854,404/x
3. Step 3: Cross multiply
   413,988x = 854,404 × 854,404
4. Step 4: Simplify right side
   413,988x = 730,006,195,216
5. Step 5: Solve for x
   x = 730,006,195,216/413,988
6. Step 6: Final answer
   x = 1,763,351.10