Finding the Third Proportional to 1,511,872 and 2,274,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511,872 : 2,274,640 = 2,274,640 : x
2. Step 2: Convert to fraction form
   1,511,872/2,274,640 = 2,274,640/x
3. Step 3: Cross multiply
   1,511,872x = 2,274,640 × 2,274,640
4. Step 4: Simplify right side
   1,511,872x = 5,173,987,129,600
5. Step 5: Solve for x
   x = 5,173,987,129,600/1,511,872
6. Step 6: Final answer
   x = 3,422,238.87