Finding the Third Proportional to 11,590.50 and 17,439.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,590.50 : 17,439.75 = 17,439.75 : x
2. Step 2: Convert to fraction form
   11,590.50/17,439.75 = 17,439.75/x
3. Step 3: Cross multiply
   11,590.50x = 17,439.75 × 17,439.75
4. Step 4: Simplify right side
   11,590.50x = 304,144,880.06
5. Step 5: Solve for x
   x = 304,144,880.06/11,590.50
6. Step 6: Final answer
   x = 26,240.88