Finding the Third Proportional to 404,036 and 878,812

Step by Step Solution

1. Step 1: Write the proportion equation
   404,036 : 878,812 = 878,812 : x
2. Step 2: Convert to fraction form
   404,036/878,812 = 878,812/x
3. Step 3: Cross multiply
   404,036x = 878,812 × 878,812
4. Step 4: Simplify right side
   404,036x = 772,310,531,344
5. Step 5: Solve for x
   x = 772,310,531,344/404,036
6. Step 6: Final answer
   x = 1,911,489.40