Finding the Third Proportional to 12,469.50 and 28,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,469.50 : 28,723.50 = 28,723.50 : x
2. Step 2: Convert to fraction form
   12,469.50/28,723.50 = 28,723.50/x
3. Step 3: Cross multiply
   12,469.50x = 28,723.50 × 28,723.50
4. Step 4: Simplify right side
   12,469.50x = 825,039,452.25
5. Step 5: Solve for x
   x = 825,039,452.25/12,469.50
6. Step 6: Final answer
   x = 66,164.60