Finding the Third Proportional to 411,929 and 868,144

Step by Step Solution

1. Step 1: Write the proportion equation
   411,929 : 868,144 = 868,144 : x
2. Step 2: Convert to fraction form
   411,929/868,144 = 868,144/x
3. Step 3: Cross multiply
   411,929x = 868,144 × 868,144
4. Step 4: Simplify right side
   411,929x = 753,674,004,736
5. Step 5: Solve for x
   x = 753,674,004,736/411,929
6. Step 6: Final answer
   x = 1,829,621.14