Finding the Third Proportional to 2,609,864 and 3,992,808

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,864 : 3,992,808 = 3,992,808 : x
2. Step 2: Convert to fraction form
   2,609,864/3,992,808 = 3,992,808/x
3. Step 3: Cross multiply
   2,609,864x = 3,992,808 × 3,992,808
4. Step 4: Simplify right side
   2,609,864x = 15,942,515,724,864
5. Step 5: Solve for x
   x = 15,942,515,724,864/2,609,864
6. Step 6: Final answer
   x = 6,108,561.87