Finding the Third Proportional to 2,489,310 and 5,431,016

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489,310 : 5,431,016 = 5,431,016 : x
2. Step 2: Convert to fraction form
   2,489,310/5,431,016 = 5,431,016/x
3. Step 3: Cross multiply
   2,489,310x = 5,431,016 × 5,431,016
4. Step 4: Simplify right side
   2,489,310x = 29,495,934,792,256
5. Step 5: Solve for x
   x = 29,495,934,792,256/2,489,310
6. Step 6: Final answer
   x = 11,849,040.41