Finding the Third Proportional to 3,216,811 and 4,900,686

Step by Step Solution

1. Step 1: Write the proportion equation
   3,216,811 : 4,900,686 = 4,900,686 : x
2. Step 2: Convert to fraction form
   3,216,811/4,900,686 = 4,900,686/x
3. Step 3: Cross multiply
   3,216,811x = 4,900,686 × 4,900,686
4. Step 4: Simplify right side
   3,216,811x = 24,016,723,270,596
5. Step 5: Solve for x
   x = 24,016,723,270,596/3,216,811
6. Step 6: Final answer
   x = 7,466,003.84