Finding the Third Proportional to 2,543,240 and 3,840,780

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543,240 : 3,840,780 = 3,840,780 : x
2. Step 2: Convert to fraction form
   2,543,240/3,840,780 = 3,840,780/x
3. Step 3: Cross multiply
   2,543,240x = 3,840,780 × 3,840,780
4. Step 4: Simplify right side
   2,543,240x = 14,751,591,008,400
5. Step 5: Solve for x
   x = 14,751,591,008,400/2,543,240
6. Step 6: Final answer
   x = 5,800,314.17