Finding the Third Proportional to 5,271.75 and 12,587.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,271.75 : 12,587.06 = 12,587.06 : x
2. Step 2: Convert to fraction form
   5,271.75/12,587.06 = 12,587.06/x
3. Step 3: Cross multiply
   5,271.75x = 12,587.06 × 12,587.06
4. Step 4: Simplify right side
   5,271.75x = 158,434,142.38
5. Step 5: Solve for x
   x = 158,434,142.38/5,271.75
6. Step 6: Final answer
   x = 30,053.42