Finding the Third Proportional to 8,803.69 and 13,209.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,803.69 : 13,209.33 = 13,209.33 : x
2. Step 2: Convert to fraction form
   8,803.69/13,209.33 = 13,209.33/x
3. Step 3: Cross multiply
   8,803.69x = 13,209.33 × 13,209.33
4. Step 4: Simplify right side
   8,803.69x = 174,486,349.51
5. Step 5: Solve for x
   x = 174,486,349.51/8,803.69
6. Step 6: Final answer
   x = 19,819.69