Finding the Third Proportional to 2,609,847 and 3,992,772

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,847 : 3,992,772 = 3,992,772 : x
2. Step 2: Convert to fraction form
   2,609,847/3,992,772 = 3,992,772/x
3. Step 3: Cross multiply
   2,609,847x = 3,992,772 × 3,992,772
4. Step 4: Simplify right side
   2,609,847x = 15,942,228,243,984
5. Step 5: Solve for x
   x = 15,942,228,243,984/2,609,847
6. Step 6: Final answer
   x = 6,108,491.51