Finding the Third Proportional to 3,913,872 and 5,972,040

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,872 : 5,972,040 = 5,972,040 : x
2. Step 2: Convert to fraction form
   3,913,872/5,972,040 = 5,972,040/x
3. Step 3: Cross multiply
   3,913,872x = 5,972,040 × 5,972,040
4. Step 4: Simplify right side
   3,913,872x = 35,665,261,761,600
5. Step 5: Solve for x
   x = 35,665,261,761,600/3,913,872
6. Step 6: Final answer
   x = 9,112,526.36