Finding the Third Proportional to 12,121.50 and 16,587.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,121.50 : 16,587.50 = 16,587.50 : x
2. Step 2: Convert to fraction form
   12,121.50/16,587.50 = 16,587.50/x
3. Step 3: Cross multiply
   12,121.50x = 16,587.50 × 16,587.50
4. Step 4: Simplify right side
   12,121.50x = 275,145,156.25
5. Step 5: Solve for x
   x = 275,145,156.25/12,121.50
6. Step 6: Final answer
   x = 22,698.94