Getting class reference from static class property

[TJGTA3]

Here's a C# example for context:
class Main : MonoBehaviour
{
public static OtherClass ClassReference;
}

class OtherClass
{
public float SomeFloat;
}

What I want to do in C++:
Main.ClassReference.SomeFloat (get and set)

OtherClass isn't a MonoBehaviour so I can't access the reference as a component. What am I supposed to do to access non-components?