Finding the Third Proportional to 13,383.50 and 20,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,383.50 : 20,816.50 = 20,816.50 : x
2. Step 2: Convert to fraction form
   13,383.50/20,816.50 = 20,816.50/x
3. Step 3: Cross multiply
   13,383.50x = 20,816.50 × 20,816.50
4. Step 4: Simplify right side
   13,383.50x = 433,326,672.25
5. Step 5: Solve for x
   x = 433,326,672.25/13,383.50
6. Step 6: Final answer
   x = 32,377.68