Finding the Third Proportional to 1,661,689 and 3,614,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661,689 : 3,614,978 = 3,614,978 : x
2. Step 2: Convert to fraction form
   1,661,689/3,614,978 = 3,614,978/x
3. Step 3: Cross multiply
   1,661,689x = 3,614,978 × 3,614,978
4. Step 4: Simplify right side
   1,661,689x = 13,068,065,940,484
5. Step 5: Solve for x
   x = 13,068,065,940,484/1,661,689
6. Step 6: Final answer
   x = 7,864,327.16