Finding the Third Proportional to 2,431,512 and 5,628,987

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,512 : 5,628,987 = 5,628,987 : x
2. Step 2: Convert to fraction form
   2,431,512/5,628,987 = 5,628,987/x
3. Step 3: Cross multiply
   2,431,512x = 5,628,987 × 5,628,987
4. Step 4: Simplify right side
   2,431,512x = 31,685,494,646,169
5. Step 5: Solve for x
   x = 31,685,494,646,169/2,431,512
6. Step 6: Final answer
   x = 13,031,189.91