Finding the Third Proportional to 11,949.75 and 16,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,949.75 : 16,870.50 = 16,870.50 : x
2. Step 2: Convert to fraction form
   11,949.75/16,870.50 = 16,870.50/x
3. Step 3: Cross multiply
   11,949.75x = 16,870.50 × 16,870.50
4. Step 4: Simplify right side
   11,949.75x = 284,613,770.25
5. Step 5: Solve for x
   x = 284,613,770.25/11,949.75
6. Step 6: Final answer
   x = 23,817.55