Finding the Third Proportional to 3,913,906 and 5,511,632

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,906 : 5,511,632 = 5,511,632 : x
2. Step 2: Convert to fraction form
   3,913,906/5,511,632 = 5,511,632/x
3. Step 3: Cross multiply
   3,913,906x = 5,511,632 × 5,511,632
4. Step 4: Simplify right side
   3,913,906x = 30,378,087,303,424
5. Step 5: Solve for x
   x = 30,378,087,303,424/3,913,906
6. Step 6: Final answer
   x = 7,761,578.15