Finding the Third Proportional to 2,431,399 and 5,628,249

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,399 : 5,628,249 = 5,628,249 : x
2. Step 2: Convert to fraction form
   2,431,399/5,628,249 = 5,628,249/x
3. Step 3: Cross multiply
   2,431,399x = 5,628,249 × 5,628,249
4. Step 4: Simplify right side
   2,431,399x = 31,677,186,806,001
5. Step 5: Solve for x
   x = 31,677,186,806,001/2,431,399
6. Step 6: Final answer
   x = 13,028,378.64