Click the "Customize and control Google Chrome" button on the toolbar and then select Settings.
Scroll down the list until you see the "Show advanced settings..." link and then click on it.
Scroll further down the list until you see the Network settings, and then click the "Change proxy settings..." button.
On the Internet Properties window, click on the "LAN settings" button.
In the LAN Settings, uncheck the box that says "Automatically detect settings." And then, in the Proxy Server section, click the checkbox to enable "Use a proxy server for your LAN..."
In the Address field, enter the IP Address of your Proxy Server, and the Proxy Server Port Number in the Port field. You will receive the IP Address and Port Number of your Proxy Server(s) in a separate email.