Finding the Third Proportional to 13,504 and 20,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,504 : 20,440.50 = 20,440.50 : x
2. Step 2: Convert to fraction form
   13,504/20,440.50 = 20,440.50/x
3. Step 3: Cross multiply
   13,504x = 20,440.50 × 20,440.50
4. Step 4: Simplify right side
   13,504x = 417,814,040.25
5. Step 5: Solve for x
   x = 417,814,040.25/13,504
6. Step 6: Final answer
   x = 30,940.02