Finding the Third Proportional to 9,469,860 and 21,188,424

Step by Step Solution

1. Step 1: Write the proportion equation
   9,469,860 : 21,188,424 = 21,188,424 : x
2. Step 2: Convert to fraction form
   9,469,860/21,188,424 = 21,188,424/x
3. Step 3: Cross multiply
   9,469,860x = 21,188,424 × 21,188,424
4. Step 4: Simplify right side
   9,469,860x = 448,949,311,603,776
5. Step 5: Solve for x
   x = 448,949,311,603,776/9,469,860
6. Step 6: Final answer
   x = 47,408,231.13