Finding the Third Proportional to 4,315,676 and 6,443,960

Step by Step Solution

1. Step 1: Write the proportion equation
   4,315,676 : 6,443,960 = 6,443,960 : x
2. Step 2: Convert to fraction form
   4,315,676/6,443,960 = 6,443,960/x
3. Step 3: Cross multiply
   4,315,676x = 6,443,960 × 6,443,960
4. Step 4: Simplify right side
   4,315,676x = 41,524,620,481,600
5. Step 5: Solve for x
   x = 41,524,620,481,600/4,315,676
6. Step 6: Final answer
   x = 9,621,811.39