Finding the Third Proportional to 12,808.13 and 20,629.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808.13 : 20,629.69 = 20,629.69 : x
2. Step 2: Convert to fraction form
   12,808.13/20,629.69 = 20,629.69/x
3. Step 3: Cross multiply
   12,808.13x = 20,629.69 × 20,629.69
4. Step 4: Simplify right side
   12,808.13x = 425,584,006.35
5. Step 5: Solve for x
   x = 425,584,006.35/12,808.13
6. Step 6: Final answer
   x = 33,227.66