Finding the Third Proportional to 3,913,974 and 5,511,726

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,974 : 5,511,726 = 5,511,726 : x
2. Step 2: Convert to fraction form
   3,913,974/5,511,726 = 5,511,726/x
3. Step 3: Cross multiply
   3,913,974x = 5,511,726 × 5,511,726
4. Step 4: Simplify right side
   3,913,974x = 30,379,123,499,076
5. Step 5: Solve for x
   x = 30,379,123,499,076/3,913,974
6. Step 6: Final answer
   x = 7,761,708.05