Finding the Third Proportional to 2,216,646 and 4,786,911

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216,646 : 4,786,911 = 4,786,911 : x
2. Step 2: Convert to fraction form
   2,216,646/4,786,911 = 4,786,911/x
3. Step 3: Cross multiply
   2,216,646x = 4,786,911 × 4,786,911
4. Step 4: Simplify right side
   2,216,646x = 22,914,516,921,921
5. Step 5: Solve for x
   x = 22,914,516,921,921/2,216,646
6. Step 6: Final answer
   x = 10,337,472.43