Finding the Third Proportional to 13,627.50 and 20,836.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,627.50 : 20,836.50 = 20,836.50 : x
2. Step 2: Convert to fraction form
   13,627.50/20,836.50 = 20,836.50/x
3. Step 3: Cross multiply
   13,627.50x = 20,836.50 × 20,836.50
4. Step 4: Simplify right side
   13,627.50x = 434,159,732.25
5. Step 5: Solve for x
   x = 434,159,732.25/13,627.50
6. Step 6: Final answer
   x = 31,859.09