Finding the Third Proportional to 13,567.50 and 18,680.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,567.50 : 18,680.63 = 18,680.63 : x
2. Step 2: Convert to fraction form
   13,567.50/18,680.63 = 18,680.63/x
3. Step 3: Cross multiply
   13,567.50x = 18,680.63 × 18,680.63
4. Step 4: Simplify right side
   13,567.50x = 348,965,750.39
5. Step 5: Solve for x
   x = 348,965,750.39/13,567.50
6. Step 6: Final answer
   x = 25,720.71