Finding the Third Proportional to 12,936.75 and 19,648.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,936.75 : 19,648.13 = 19,648.13 : x
2. Step 2: Convert to fraction form
   12,936.75/19,648.13 = 19,648.13/x
3. Step 3: Cross multiply
   12,936.75x = 19,648.13 × 19,648.13
4. Step 4: Simplify right side
   12,936.75x = 386,048,816.02
5. Step 5: Solve for x
   x = 386,048,816.02/12,936.75
6. Step 6: Final answer
   x = 29,841.25