Finding the Third Proportional to 2,214,216 and 4,690,872

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214,216 : 4,690,872 = 4,690,872 : x
2. Step 2: Convert to fraction form
   2,214,216/4,690,872 = 4,690,872/x
3. Step 3: Cross multiply
   2,214,216x = 4,690,872 × 4,690,872
4. Step 4: Simplify right side
   2,214,216x = 22,004,280,120,384
5. Step 5: Solve for x
   x = 22,004,280,120,384/2,214,216
6. Step 6: Final answer
   x = 9,937,729.71