Finding the Third Proportional to 1,010,665 and 2,189,517

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,665 : 2,189,517 = 2,189,517 : x
2. Step 2: Convert to fraction form
   1,010,665/2,189,517 = 2,189,517/x
3. Step 3: Cross multiply
   1,010,665x = 2,189,517 × 2,189,517
4. Step 4: Simplify right side
   1,010,665x = 4,793,984,693,289
5. Step 5: Solve for x
   x = 4,793,984,693,289/1,010,665
6. Step 6: Final answer
   x = 4,743,396.37