Finding the Third Proportional to 4,325,778 and 9,412,644

Step by Step Solution

1. Step 1: Write the proportion equation
   4,325,778 : 9,412,644 = 9,412,644 : x
2. Step 2: Convert to fraction form
   4,325,778/9,412,644 = 9,412,644/x
3. Step 3: Cross multiply
   4,325,778x = 9,412,644 × 9,412,644
4. Step 4: Simplify right side
   4,325,778x = 88,597,867,070,736
5. Step 5: Solve for x
   x = 88,597,867,070,736/4,325,778
6. Step 6: Final answer
   x = 20,481,371.69