Packet Tracer

Network $1$

$192\mathrm{.}168\mathrm{.}1\mathrm{.}0/24$

Use $192\mathrm{.}168\mathrm{.}1\mathrm{.}254$ as your default gateway

$3$ PCs$\text{'}$ Assign IP addresses

Network $2$

$172\mathrm{.}16\mathrm{.}0\mathrm{.}0/22$

use $172\mathrm{.}16\mathrm{.}0\mathrm{.}1$ as your default gateway

$3$ PC$\text{'}$s Assign IP addreses

Connet the $2$ networks with a Cisco $1941$ Router