How to use projection information in WKT form to define projection for a raster?

[FiveO]

I have a raster file with Unknown Coordinate System and a WKT-file that has the CS information. How do it connect those two in ArcGIS Pro? The Define Projection tool gives me an option to create a new coordinate system, but I'm not sure which information in the WKT-file is needed. Thanks!

[FiveO]

An update to this question (after trying multiple ways of defining projection and projecting the raster): 

It seems like the extent coordinates of the raster are wrong, which means it doesn't matter which coordinate system the files is set to as it will still use those wrong extent coordinates to locate the raster. How do I update the raster (not the map) extent coordinates? The extent should be around 125 W and 72 N (Amundsen Gulf). You see the original extent in the file attached. Also, the tfw-file of the rasters shows this: 

0.6857400655 0.0000000000 0.0000000000 -0.6857400655 -10.2788462173 13.3755072589

Any ideas? Thank you!

[FiveO]

Thank you for your help Dan!