Finding the Third Proportional to 4,325,780 and 9,412,648

Step by Step Solution

1. Step 1: Write the proportion equation
   4,325,780 : 9,412,648 = 9,412,648 : x
2. Step 2: Convert to fraction form
   4,325,780/9,412,648 = 9,412,648/x
3. Step 3: Cross multiply
   4,325,780x = 9,412,648 × 9,412,648
4. Step 4: Simplify right side
   4,325,780x = 88,597,942,371,904
5. Step 5: Solve for x
   x = 88,597,942,371,904/4,325,780
6. Step 6: Final answer
   x = 20,481,379.63