Finding the Third Proportional to 4,023,474 and 8,622,216

Step by Step Solution

1. Step 1: Write the proportion equation
   4,023,474 : 8,622,216 = 8,622,216 : x
2. Step 2: Convert to fraction form
   4,023,474/8,622,216 = 8,622,216/x
3. Step 3: Cross multiply
   4,023,474x = 8,622,216 × 8,622,216
4. Step 4: Simplify right side
   4,023,474x = 74,342,608,750,656
5. Step 5: Solve for x
   x = 74,342,608,750,656/4,023,474
6. Step 6: Final answer
   x = 18,477,218.63