Finding the Third Proportional to 3,913,940 and 5,511,675

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,940 : 5,511,675 = 5,511,675 : x
2. Step 2: Convert to fraction form
   3,913,940/5,511,675 = 5,511,675/x
3. Step 3: Cross multiply
   3,913,940x = 5,511,675 × 5,511,675
4. Step 4: Simplify right side
   3,913,940x = 30,378,561,305,625
5. Step 5: Solve for x
   x = 30,378,561,305,625/3,913,940
6. Step 6: Final answer
   x = 7,761,631.84