Finding intersection of two column data

Hello everyone.

I have 2 array which they have an intersection.

X Y1 Y2
0|||||30.00|||||10
0.5|||28.64|||||10.5
1|||||27.00|||||11
1.5|||25.23|||||11.5
2|||||23.18|||||12.2
2.5|||21.14|||||13.1
3|||||18.95|||||14.1
3.5|||16.36|||||15.1
4|||||13.64|||||16.3
4.5|||10.91|||||17.6
5|||||8.18|||||19.1
5.5|||5.45|||||21.3

See this figure: Untitled-1.jpg

So I am interesting to the Coordinate of the intersection point. Note that I don't want to use polyline fitting.
Is there any solution?
thanks.