Finding the Third Proportional to 726,986 and 1,103,561

Step by Step Solution

1. Step 1: Write the proportion equation
   726,986 : 1,103,561 = 1,103,561 : x
2. Step 2: Convert to fraction form
   726,986/1,103,561 = 1,103,561/x
3. Step 3: Cross multiply
   726,986x = 1,103,561 × 1,103,561
4. Step 4: Simplify right side
   726,986x = 1,217,846,880,721
5. Step 5: Solve for x
   x = 1,217,846,880,721/726,986
6. Step 6: Final answer
   x = 1,675,199.91