2D data interpolation

Hi

I have 3 2-D data points .I need to interpolate more data in between. How could it be possible ?

Data is

x1=[1.37477071 0.31042702 0.26780414];
x2=[6.020902403 5.699980171 5.282922163];

I need 10,000 points. 5000 points between the first two datasets and again 5000 points between the second pair of datasets.

Any help is appreciated.

Thanks

[Akira Agata]

Question for clarification. You mean you want to interpolate x2 against x1 (i.e want to apply interp1 function to obtain x2 = f(x1) curve)?