Finding the Third Proportional to 669,411 and 1,019,820

Step by Step Solution

1. Step 1: Write the proportion equation
   669,411 : 1,019,820 = 1,019,820 : x
2. Step 2: Convert to fraction form
   669,411/1,019,820 = 1,019,820/x
3. Step 3: Cross multiply
   669,411x = 1,019,820 × 1,019,820
4. Step 4: Simplify right side
   669,411x = 1,040,032,832,400
5. Step 5: Solve for x
   x = 1,040,032,832,400/669,411
6. Step 6: Final answer
   x = 1,553,653.63