Finding the Third Proportional to 11,558 and 17,857

Step by Step Solution

1. Step 1: Write the proportion equation
   11,558 : 17,857 = 17,857 : x
2. Step 2: Convert to fraction form
   11,558/17,857 = 17,857/x
3. Step 3: Cross multiply
   11,558x = 17,857 × 17,857
4. Step 4: Simplify right side
   11,558x = 318,872,449
5. Step 5: Solve for x
   x = 318,872,449/11,558
6. Step 6: Final answer
   x = 27,588.90