Finding the Third Proportional to 12,959.50 and 20,012

Step by Step Solution

1. Step 1: Write the proportion equation
   12,959.50 : 20,012 = 20,012 : x
2. Step 2: Convert to fraction form
   12,959.50/20,012 = 20,012/x
3. Step 3: Cross multiply
   12,959.50x = 20,012 × 20,012
4. Step 4: Simplify right side
   12,959.50x = 400,480,144
5. Step 5: Solve for x
   x = 400,480,144/12,959.50
6. Step 6: Final answer
   x = 30,902.44