Suppose that in a triangle $$\Delta ABC$$, $$\overline{AB} = 8$$, $$\overline{BC} = 6$$, $$\overline{AC} = 7$$, $$\overline{BD} = 3$$, and $$\overline{AD} = 5$$. Then what is the value of $$\overline{CD}= d$$. (round to nearest hundredths)