Finding the Third Proportional to 12,768.50 and 19,793.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768.50 : 19,793.50 = 19,793.50 : x
2. Step 2: Convert to fraction form
   12,768.50/19,793.50 = 19,793.50/x
3. Step 3: Cross multiply
   12,768.50x = 19,793.50 × 19,793.50
4. Step 4: Simplify right side
   12,768.50x = 391,782,642.25
5. Step 5: Solve for x
   x = 391,782,642.25/12,768.50
6. Step 6: Final answer
   x = 30,683.53