帮我讲解这道题目
---**Question Number:** 108
**Question Stem:**
在 $\triangle \text{ABC}$ 中, $\text{AC}=6$, $\text{AB}=8$, $\text{D}$ 为 $\text{AC}$ 上一点, $\text{AD}=2$, 在 $\text{AB}$ 上取一点 $\text{E}$, 使 $\triangle \text{ADE} \backsim \triangle \text{ABC}$, 则 $\text{AE}=$______。
**Extracted Information:**
* Given triangle ABC.
* Length of side AC = 6.
* Length of side AB = 8.
* Point D is on AC.
* Length of segment AD = 2.
* Point E is on AB.
* Triangle ADE is similar to triangle ABC ($\triangle \text{ADE} \backsim \triangle \text{ABC}$).
* Find the length of segment AE.