Finding the Third Proportional to 8,975 and 12,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,975 : 12,819.50 = 12,819.50 : x
2. Step 2: Convert to fraction form
   8,975/12,819.50 = 12,819.50/x
3. Step 3: Cross multiply
   8,975x = 12,819.50 × 12,819.50
4. Step 4: Simplify right side
   8,975x = 164,339,580.25
5. Step 5: Solve for x
   x = 164,339,580.25/8,975
6. Step 6: Final answer
   x = 18,310.82