Finding the Third Proportional to 2,089,777 and 4,268,121

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089,777 : 4,268,121 = 4,268,121 : x
2. Step 2: Convert to fraction form
   2,089,777/4,268,121 = 4,268,121/x
3. Step 3: Cross multiply
   2,089,777x = 4,268,121 × 4,268,121
4. Step 4: Simplify right side
   2,089,777x = 18,216,856,870,641
5. Step 5: Solve for x
   x = 18,216,856,870,641/2,089,777
6. Step 6: Final answer
   x = 8,717,129.56