Finding the Third Proportional to 12,469.50 and 28,869.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,469.50 : 28,869.75 = 28,869.75 : x
2. Step 2: Convert to fraction form
   12,469.50/28,869.75 = 28,869.75/x
3. Step 3: Cross multiply
   12,469.50x = 28,869.75 × 28,869.75
4. Step 4: Simplify right side
   12,469.50x = 833,462,465.06
5. Step 5: Solve for x
   x = 833,462,465.06/12,469.50
6. Step 6: Final answer
   x = 66,840.09