Finding the Third Proportional to 4,303,872 and 9,320,256

Step by Step Solution

1. Step 1: Write the proportion equation
   4,303,872 : 9,320,256 = 9,320,256 : x
2. Step 2: Convert to fraction form
   4,303,872/9,320,256 = 9,320,256/x
3. Step 3: Cross multiply
   4,303,872x = 9,320,256 × 9,320,256
4. Step 4: Simplify right side
   4,303,872x = 86,867,171,905,536
5. Step 5: Solve for x
   x = 86,867,171,905,536/4,303,872
6. Step 6: Final answer
   x = 20,183,493.35