Finding the Third Proportional to 2,418,274 and 5,278,645

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418,274 : 5,278,645 = 5,278,645 : x
2. Step 2: Convert to fraction form
   2,418,274/5,278,645 = 5,278,645/x
3. Step 3: Cross multiply
   2,418,274x = 5,278,645 × 5,278,645
4. Step 4: Simplify right side
   2,418,274x = 27,864,093,036,025
5. Step 5: Solve for x
   x = 27,864,093,036,025/2,418,274
6. Step 6: Final answer
   x = 11,522,306.01