Finding the Third Proportional to 12,589 and 17,599.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,589 : 17,599.50 = 17,599.50 : x
2. Step 2: Convert to fraction form
   12,589/17,599.50 = 17,599.50/x
3. Step 3: Cross multiply
   12,589x = 17,599.50 × 17,599.50
4. Step 4: Simplify right side
   12,589x = 309,742,400.25
5. Step 5: Solve for x
   x = 309,742,400.25/12,589
6. Step 6: Final answer
   x = 24,604.21