Finding the Third Proportional to 13,433.50 and 20,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,433.50 : 20,447.50 = 20,447.50 : x
2. Step 2: Convert to fraction form
   13,433.50/20,447.50 = 20,447.50/x
3. Step 3: Cross multiply
   13,433.50x = 20,447.50 × 20,447.50
4. Step 4: Simplify right side
   13,433.50x = 418,100,256.25
5. Step 5: Solve for x
   x = 418,100,256.25/13,433.50
6. Step 6: Final answer
   x = 31,123.70