Finding the Third Proportional to 2,089,821 and 4,238,403

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089,821 : 4,238,403 = 4,238,403 : x
2. Step 2: Convert to fraction form
   2,089,821/4,238,403 = 4,238,403/x
3. Step 3: Cross multiply
   2,089,821x = 4,238,403 × 4,238,403
4. Step 4: Simplify right side
   2,089,821x = 17,964,059,990,409
5. Step 5: Solve for x
   x = 17,964,059,990,409/2,089,821
6. Step 6: Final answer
   x = 8,595,980.23