Finding the Third Proportional to 5,728,708 and 12,479,956

Step by Step Solution

1. Step 1: Write the proportion equation
   5,728,708 : 12,479,956 = 12,479,956 : x
2. Step 2: Convert to fraction form
   5,728,708/12,479,956 = 12,479,956/x
3. Step 3: Cross multiply
   5,728,708x = 12,479,956 × 12,479,956
4. Step 4: Simplify right side
   5,728,708x = 155,749,301,761,936
5. Step 5: Solve for x
   x = 155,749,301,761,936/5,728,708
6. Step 6: Final answer
   x = 27,187,509.25