Formset related through two foreign keys

Using Django Forms & APIs
1

I have 3 models:

class Mixture(models.Model):
    mixture_name = models.TextField()

class Contact(models.Model):
    last_name = models.CharField()    
    first_name = models.CharField()

class ContactPerson(models.Model):
    mixture = models.ForeignKey(
        Mixture,
        on_delete = models.CASCADE,
    )
    person = models.ForeignKey(
        Contact,
        on_delete = models.PROTECT,
    )

These are my forms:

class MixtureForm(ModelForm):
    class Meta:
        model = Mixture
        fields = [
            'mixture_name',
        ]

class ContactPersonForm(ModelForm):
    class Meta:
        model: ContactPerson
        fields = ['person']

ContactPersonFormset = inlineformset_factory(
    Mixture, ContactPerson, form = ContactPersonForm,
    extra = 0, can_delete = True, can_delete_extra = True,
)

Is it possible to create formset of ContactForms (model Contact) on the MixtureForm?