Finding the Third Proportional to 2,687,843 and 4,161,771

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687,843 : 4,161,771 = 4,161,771 : x
2. Step 2: Convert to fraction form
   2,687,843/4,161,771 = 4,161,771/x
3. Step 3: Cross multiply
   2,687,843x = 4,161,771 × 4,161,771
4. Step 4: Simplify right side
   2,687,843x = 17,320,337,856,441
5. Step 5: Solve for x
   x = 17,320,337,856,441/2,687,843
6. Step 6: Final answer
   x = 6,443,954.45