Finding the Third Proportional to 5,404.50 and 11,755.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.50 : 11,755.69 = 11,755.69 : x
2. Step 2: Convert to fraction form
   5,404.50/11,755.69 = 11,755.69/x
3. Step 3: Cross multiply
   5,404.50x = 11,755.69 × 11,755.69
4. Step 4: Simplify right side
   5,404.50x = 138,196,188.60
5. Step 5: Solve for x
   x = 138,196,188.60/5,404.50
6. Step 6: Final answer
   x = 25,570.58