Finding the Third Proportional to 13,117.50 and 20,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,117.50 : 20,860.50 = 20,860.50 : x
2. Step 2: Convert to fraction form
   13,117.50/20,860.50 = 20,860.50/x
3. Step 3: Cross multiply
   13,117.50x = 20,860.50 × 20,860.50
4. Step 4: Simplify right side
   13,117.50x = 435,160,460.25
5. Step 5: Solve for x
   x = 435,160,460.25/13,117.50
6. Step 6: Final answer
   x = 33,174.04