Finding the Third Proportional to 646,748 and 1,396,744

Step by Step Solution

1. Step 1: Write the proportion equation
   646,748 : 1,396,744 = 1,396,744 : x
2. Step 2: Convert to fraction form
   646,748/1,396,744 = 1,396,744/x
3. Step 3: Cross multiply
   646,748x = 1,396,744 × 1,396,744
4. Step 4: Simplify right side
   646,748x = 1,950,893,801,536
5. Step 5: Solve for x
   x = 1,950,893,801,536/646,748
6. Step 6: Final answer
   x = 3,016,466.69