Okay, here we have this:
Considering the provided operation we are going to solve it, so we obtain the following:
[tex]\begin{gathered} 3.436\cdot50\% \\ =3.436\cdot\frac{50}{100} \\ =3.436\cdot0.5 \\ =1718 \end{gathered}[/tex]Finally we obtain that 50 percent of $3.436 is exactly $1.718.