Finding the Third Proportional to 2,687,850 and 4,161,780

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687,850 : 4,161,780 = 4,161,780 : x
2. Step 2: Convert to fraction form
   2,687,850/4,161,780 = 4,161,780/x
3. Step 3: Cross multiply
   2,687,850x = 4,161,780 × 4,161,780
4. Step 4: Simplify right side
   2,687,850x = 17,320,412,768,400
5. Step 5: Solve for x
   x = 17,320,412,768,400/2,687,850
6. Step 6: Final answer
   x = 6,443,965.54