Finding the Third Proportional to 11,988 and 25,710

Step by Step Solution

1. Step 1: Write the proportion equation
   11,988 : 25,710 = 25,710 : x
2. Step 2: Convert to fraction form
   11,988/25,710 = 25,710/x
3. Step 3: Cross multiply
   11,988x = 25,710 × 25,710
4. Step 4: Simplify right side
   11,988x = 661,004,100
5. Step 5: Solve for x
   x = 661,004,100/11,988
6. Step 6: Final answer
   x = 55,138.81