Finding the Third Proportional to 411,996 and 868,280

Step by Step Solution

1. Step 1: Write the proportion equation
   411,996 : 868,280 = 868,280 : x
2. Step 2: Convert to fraction form
   411,996/868,280 = 868,280/x
3. Step 3: Cross multiply
   411,996x = 868,280 × 868,280
4. Step 4: Simplify right side
   411,996x = 753,910,158,400
5. Step 5: Solve for x
   x = 753,910,158,400/411,996
6. Step 6: Final answer
   x = 1,829,896.79