Finding the Third Proportional to 14,186.39 and 20,868.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,186.39 : 20,868.89 = 20,868.89 : x
2. Step 2: Convert to fraction form
   14,186.39/20,868.89 = 20,868.89/x
3. Step 3: Cross multiply
   14,186.39x = 20,868.89 × 20,868.89
4. Step 4: Simplify right side
   14,186.39x = 435,510,595.92
5. Step 5: Solve for x
   x = 435,510,595.92/14,186.39
6. Step 6: Final answer
   x = 30,699.18