Finding the Third Proportional to 12,829.50 and 15,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,829.50 : 15,628.50 = 15,628.50 : x
2. Step 2: Convert to fraction form
   12,829.50/15,628.50 = 15,628.50/x
3. Step 3: Cross multiply
   12,829.50x = 15,628.50 × 15,628.50
4. Step 4: Simplify right side
   12,829.50x = 244,250,012.25
5. Step 5: Solve for x
   x = 244,250,012.25/12,829.50
6. Step 6: Final answer
   x = 19,038.16