Finding the Third Proportional to 11,553.75 and 12,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,553.75 : 12,404.25 = 12,404.25 : x
2. Step 2: Convert to fraction form
   11,553.75/12,404.25 = 12,404.25/x
3. Step 3: Cross multiply
   11,553.75x = 12,404.25 × 12,404.25
4. Step 4: Simplify right side
   11,553.75x = 153,865,418.06
5. Step 5: Solve for x
   x = 153,865,418.06/11,553.75
6. Step 6: Final answer
   x = 13,317.36