Finding the Third Proportional to 3,913,904 and 5,511,630

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,904 : 5,511,630 = 5,511,630 : x
2. Step 2: Convert to fraction form
   3,913,904/5,511,630 = 5,511,630/x
3. Step 3: Cross multiply
   3,913,904x = 5,511,630 × 5,511,630
4. Step 4: Simplify right side
   3,913,904x = 30,378,065,256,900
5. Step 5: Solve for x
   x = 30,378,065,256,900/3,913,904
6. Step 6: Final answer
   x = 7,761,576.49