Finding the Third Proportional to 2,086,561 and 4,571,642

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086,561 : 4,571,642 = 4,571,642 : x
2. Step 2: Convert to fraction form
   2,086,561/4,571,642 = 4,571,642/x
3. Step 3: Cross multiply
   2,086,561x = 4,571,642 × 4,571,642
4. Step 4: Simplify right side
   2,086,561x = 20,899,910,576,164
5. Step 5: Solve for x
   x = 20,899,910,576,164/2,086,561
6. Step 6: Final answer
   x = 10,016,438.81