Finding the Third Proportional to 623,668 and 1,004,406

Step by Step Solution

1. Step 1: Write the proportion equation
   623,668 : 1,004,406 = 1,004,406 : x
2. Step 2: Convert to fraction form
   623,668/1,004,406 = 1,004,406/x
3. Step 3: Cross multiply
   623,668x = 1,004,406 × 1,004,406
4. Step 4: Simplify right side
   623,668x = 1,008,831,412,836
5. Step 5: Solve for x
   x = 1,008,831,412,836/623,668
6. Step 6: Final answer
   x = 1,617,577.64