Finding the Third Proportional to 669,402 and 1,019,805

Step by Step Solution

1. Step 1: Write the proportion equation
   669,402 : 1,019,805 = 1,019,805 : x
2. Step 2: Convert to fraction form
   669,402/1,019,805 = 1,019,805/x
3. Step 3: Cross multiply
   669,402x = 1,019,805 × 1,019,805
4. Step 4: Simplify right side
   669,402x = 1,040,002,238,025
5. Step 5: Solve for x
   x = 1,040,002,238,025/669,402
6. Step 6: Final answer
   x = 1,553,628.82