Is it possible to create an arc which connects to 3 elements tangentially? e.g. an arc between elements but the centre point also touches a third element in the middle. Something you can do in AutoCAD with Circle > 3P > tan snap for each point. I've…

I need to construct reverse curves with transitions that have a common tangent point, as shown in this standard figure here. I need both arcs to be of 145m radius and the back-to-back spirals to be 25m long. How should I go about doing that? Thanks…