Finding the Third Proportional to 3,471,872 and 5,256,768

Step by Step Solution

1. Step 1: Write the proportion equation
   3,471,872 : 5,256,768 = 5,256,768 : x
2. Step 2: Convert to fraction form
   3,471,872/5,256,768 = 5,256,768/x
3. Step 3: Cross multiply
   3,471,872x = 5,256,768 × 5,256,768
4. Step 4: Simplify right side
   3,471,872x = 27,633,609,805,824
5. Step 5: Solve for x
   x = 27,633,609,805,824/3,471,872
6. Step 6: Final answer
   x = 7,959,282.43