Finding the Third Proportional to 12,708 and 26,300.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708 : 26,300.25 = 26,300.25 : x
2. Step 2: Convert to fraction form
   12,708/26,300.25 = 26,300.25/x
3. Step 3: Cross multiply
   12,708x = 26,300.25 × 26,300.25
4. Step 4: Simplify right side
   12,708x = 691,703,150.06
5. Step 5: Solve for x
   x = 691,703,150.06/12,708
6. Step 6: Final answer
   x = 54,430.53