Finding the Third Proportional to 2,215,812 and 4,819,848

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,812 : 4,819,848 = 4,819,848 : x
2. Step 2: Convert to fraction form
   2,215,812/4,819,848 = 4,819,848/x
3. Step 3: Cross multiply
   2,215,812x = 4,819,848 × 4,819,848
4. Step 4: Simplify right side
   2,215,812x = 23,230,934,743,104
5. Step 5: Solve for x
   x = 23,230,934,743,104/2,215,812
6. Step 6: Final answer
   x = 10,484,163.25