Finding the Third Proportional to 10,909.69 and 17,458.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,909.69 : 17,458.03 = 17,458.03 : x
2. Step 2: Convert to fraction form
   10,909.69/17,458.03 = 17,458.03/x
3. Step 3: Cross multiply
   10,909.69x = 17,458.03 × 17,458.03
4. Step 4: Simplify right side
   10,909.69x = 304,782,855.13
5. Step 5: Solve for x
   x = 304,782,855.13/10,909.69
6. Step 6: Final answer
   x = 27,936.90