Finding the Third Proportional to 8,660 and 17,590

Step by Step Solution

1. Step 1: Write the proportion equation
   8,660 : 17,590 = 17,590 : x
2. Step 2: Convert to fraction form
   8,660/17,590 = 17,590/x
3. Step 3: Cross multiply
   8,660x = 17,590 × 17,590
4. Step 4: Simplify right side
   8,660x = 309,408,100
5. Step 5: Solve for x
   x = 309,408,100/8,660
6. Step 6: Final answer
   x = 35,728.42