Finding the Third Proportional to 5,521,089 and 8,431,104

Step by Step Solution

1. Step 1: Write the proportion equation
   5,521,089 : 8,431,104 = 8,431,104 : x
2. Step 2: Convert to fraction form
   5,521,089/8,431,104 = 8,431,104/x
3. Step 3: Cross multiply
   5,521,089x = 8,431,104 × 8,431,104
4. Step 4: Simplify right side
   5,521,089x = 71,083,514,658,816
5. Step 5: Solve for x
   x = 71,083,514,658,816/5,521,089
6. Step 6: Final answer
   x = 12,874,908.31