Finding the Third Proportional to 407,007 and 868,049

Step by Step Solution

1. Step 1: Write the proportion equation
   407,007 : 868,049 = 868,049 : x
2. Step 2: Convert to fraction form
   407,007/868,049 = 868,049/x
3. Step 3: Cross multiply
   407,007x = 868,049 × 868,049
4. Step 4: Simplify right side
   407,007x = 753,509,066,401
5. Step 5: Solve for x
   x = 753,509,066,401/407,007
6. Step 6: Final answer
   x = 1,851,341.79