Finding the Third Proportional to 4,216,642 and 9,245,876

Step by Step Solution

1. Step 1: Write the proportion equation
   4,216,642 : 9,245,876 = 9,245,876 : x
2. Step 2: Convert to fraction form
   4,216,642/9,245,876 = 9,245,876/x
3. Step 3: Cross multiply
   4,216,642x = 9,245,876 × 9,245,876
4. Step 4: Simplify right side
   4,216,642x = 85,486,223,007,376
5. Step 5: Solve for x
   x = 85,486,223,007,376/4,216,642
6. Step 6: Final answer
   x = 20,273,531.17