Finding the Third Proportional to 2,215,811 and 4,819,846

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,811 : 4,819,846 = 4,819,846 : x
2. Step 2: Convert to fraction form
   2,215,811/4,819,846 = 4,819,846/x
3. Step 3: Cross multiply
   2,215,811x = 4,819,846 × 4,819,846
4. Step 4: Simplify right side
   2,215,811x = 23,230,915,463,716
5. Step 5: Solve for x
   x = 23,230,915,463,716/2,215,811
6. Step 6: Final answer
   x = 10,484,159.28