Finding the Third Proportional to 2,609,868 and 3,992,805

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,868 : 3,992,805 = 3,992,805 : x
2. Step 2: Convert to fraction form
   2,609,868/3,992,805 = 3,992,805/x
3. Step 3: Cross multiply
   2,609,868x = 3,992,805 × 3,992,805
4. Step 4: Simplify right side
   2,609,868x = 15,942,491,768,025
5. Step 5: Solve for x
   x = 15,942,491,768,025/2,609,868
6. Step 6: Final answer
   x = 6,108,543.33