Finding the Third Proportional to 623,490 and 1,004,089

Step by Step Solution

1. Step 1: Write the proportion equation
   623,490 : 1,004,089 = 1,004,089 : x
2. Step 2: Convert to fraction form
   623,490/1,004,089 = 1,004,089/x
3. Step 3: Cross multiply
   623,490x = 1,004,089 × 1,004,089
4. Step 4: Simplify right side
   623,490x = 1,008,194,719,921
5. Step 5: Solve for x
   x = 1,008,194,719,921/623,490
6. Step 6: Final answer
   x = 1,617,018.27