Finding the Third Proportional to 2,216,430 and 4,771,872

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216,430 : 4,771,872 = 4,771,872 : x
2. Step 2: Convert to fraction form
   2,216,430/4,771,872 = 4,771,872/x
3. Step 3: Cross multiply
   2,216,430x = 4,771,872 × 4,771,872
4. Step 4: Simplify right side
   2,216,430x = 22,770,762,384,384
5. Step 5: Solve for x
   x = 22,770,762,384,384/2,216,430
6. Step 6: Final answer
   x = 10,273,621.27