Finding the Third Proportional to 13,543.88 and 20,199.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,543.88 : 20,199.38 = 20,199.38 : x
2. Step 2: Convert to fraction form
   13,543.88/20,199.38 = 20,199.38/x
3. Step 3: Cross multiply
   13,543.88x = 20,199.38 × 20,199.38
4. Step 4: Simplify right side
   13,543.88x = 408,014,750.39
5. Step 5: Solve for x
   x = 408,014,750.39/13,543.88
6. Step 6: Final answer
   x = 30,125.41