Finding the Third Proportional to 13,020.75 and 20,071.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.75 : 20,071.55 = 20,071.55 : x
2. Step 2: Convert to fraction form
   13,020.75/20,071.55 = 20,071.55/x
3. Step 3: Cross multiply
   13,020.75x = 20,071.55 × 20,071.55
4. Step 4: Simplify right side
   13,020.75x = 402,866,993.96
5. Step 5: Solve for x
   x = 402,866,993.96/13,020.75
6. Step 6: Final answer
   x = 30,940.38