Finding the Third Proportional to 3,913,986 and 5,511,753

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,986 : 5,511,753 = 5,511,753 : x
2. Step 2: Convert to fraction form
   3,913,986/5,511,753 = 5,511,753/x
3. Step 3: Cross multiply
   3,913,986x = 5,511,753 × 5,511,753
4. Step 4: Simplify right side
   3,913,986x = 30,379,421,133,009
5. Step 5: Solve for x
   x = 30,379,421,133,009/3,913,986
6. Step 6: Final answer
   x = 7,761,760.30