Finding the Third Proportional to 3,913,866 and 5,972,031

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,866 : 5,972,031 = 5,972,031 : x
2. Step 2: Convert to fraction form
   3,913,866/5,972,031 = 5,972,031/x
3. Step 3: Cross multiply
   3,913,866x = 5,972,031 × 5,972,031
4. Step 4: Simplify right side
   3,913,866x = 35,665,154,264,961
5. Step 5: Solve for x
   x = 35,665,154,264,961/3,913,866
6. Step 6: Final answer
   x = 9,112,512.86