Finding the Third Proportional to 669,404 and 1,019,813

Step by Step Solution

1. Step 1: Write the proportion equation
   669,404 : 1,019,813 = 1,019,813 : x
2. Step 2: Convert to fraction form
   669,404/1,019,813 = 1,019,813/x
3. Step 3: Cross multiply
   669,404x = 1,019,813 × 1,019,813
4. Step 4: Simplify right side
   669,404x = 1,040,018,554,969
5. Step 5: Solve for x
   x = 1,040,018,554,969/669,404
6. Step 6: Final answer
   x = 1,553,648.55