Finding the Third Proportional to 11,404.13 and 17,059.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.13 : 17,059.78 = 17,059.78 : x
2. Step 2: Convert to fraction form
   11,404.13/17,059.78 = 17,059.78/x
3. Step 3: Cross multiply
   11,404.13x = 17,059.78 × 17,059.78
4. Step 4: Simplify right side
   11,404.13x = 291,036,136.30
5. Step 5: Solve for x
   x = 291,036,136.30/11,404.13
6. Step 6: Final answer
   x = 25,520.25