Finding the Third Proportional to 2,216,507 and 4,786,661

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216,507 : 4,786,661 = 4,786,661 : x
2. Step 2: Convert to fraction form
   2,216,507/4,786,661 = 4,786,661/x
3. Step 3: Cross multiply
   2,216,507x = 4,786,661 × 4,786,661
4. Step 4: Simplify right side
   2,216,507x = 22,912,123,528,921
5. Step 5: Solve for x
   x = 22,912,123,528,921/2,216,507
6. Step 6: Final answer
   x = 10,337,040.91