Finding the Third Proportional to 6,540,686 and 10,039,839

Step by Step Solution

1. Step 1: Write the proportion equation
   6,540,686 : 10,039,839 = 10,039,839 : x
2. Step 2: Convert to fraction form
   6,540,686/10,039,839 = 10,039,839/x
3. Step 3: Cross multiply
   6,540,686x = 10,039,839 × 10,039,839
4. Step 4: Simplify right side
   6,540,686x = 100,798,367,145,921
5. Step 5: Solve for x
   x = 100,798,367,145,921/6,540,686
6. Step 6: Final answer
   x = 15,410,977.86