1. **State the problem:** Evaluate the expression $ (5 \times 3) \times 7 $. 2. **Recall the order of operations:** Multiplication is associative, so we can multiply in any order. 3. **Calculate the first part:** $5 \times 3 = 15$. 4. **Multiply the result by 7:** $15 \times 7 = 105$. 5. **Final answer:** The value of $ (5 \times 3) \times 7 $ is $105$.