Finding the Third Proportional to 11,511 and 17,601

Step by Step Solution

1. Step 1: Write the proportion equation
   11,511 : 17,601 = 17,601 : x
2. Step 2: Convert to fraction form
   11,511/17,601 = 17,601/x
3. Step 3: Cross multiply
   11,511x = 17,601 × 17,601
4. Step 4: Simplify right side
   11,511x = 309,795,201
5. Step 5: Solve for x
   x = 309,795,201/11,511
6. Step 6: Final answer
   x = 26,912.97