See the installation instructions below from https://support.google.com/chrome/answer/95346?hl=en&co=GENIE.Platform%3DDesktop
Install Chrome on Mac
- Download the installation file.
- Open the file called "googlechrome.dmg."
- In the window that opens, find Chrome .
- Drag Chrome to the Applications folder.
- You might be asked to enter the admin password.
- If you don't know the admin password, drag Chrome to a place on your computer where you can make edits, like your desktop.
- Open Chrome.
- Open Finder.
- In the sidebar, to the right of Google Chrome, click Eject .
Also see the following from the same site:
You can choose the correct version of Chrome to download based on your Mac processor.
To check which version of Chrome to install:
- On your Mac, select the Apple icon.
- Select About this Mac.
- In the “Overview” tab, next to “Processor” or “Chip”, check if it says “Intel” or “Apple”.
When downloading the Chrome installation file, select the option that matches your device.