Finding the Third Proportional to 2,215,791 and 4,819,812

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,791 : 4,819,812 = 4,819,812 : x
2. Step 2: Convert to fraction form
   2,215,791/4,819,812 = 4,819,812/x
3. Step 3: Cross multiply
   2,215,791x = 4,819,812 × 4,819,812
4. Step 4: Simplify right side
   2,215,791x = 23,230,587,715,344
5. Step 5: Solve for x
   x = 23,230,587,715,344/2,215,791
6. Step 6: Final answer
   x = 10,484,106.00