Splitting an Output Vector into 3 Vectors

Question

I am both old and new to R.

I am trying to calculate diversity indices for some characteristics of corporate boards and I was fortunate to adapt the diversity function suggested by Maurit Evers (Blau index of Diversity in R). The function returns the following information

Gender MBA Degree 0.375 0.375 0.375

I would like to take this output and put it in a new data frame.

I use the code below to create vectors

#create a new table from the outcome
   # Creating Vectors
   x3 <- c((apply(test.data.123.2015, 2, get.GS.index, type1))
   x2 <- 2015
   x1 <- 123


   # Creating list of vectors
   x <- list(x1,x2,x3)
   x

   # Converting list to data frame
   df<-as.data.frame(t(x))
   df

This is the output I get V1 V2 V3 1 123 2015 0.375, 0.375, 0.375

I would like to get a simple table which shows

Company Year Gender MBA Degree 123 2015 .375 .375 .375

How do I split V3 into 3 columns?

I thank you in advance for any help you can give me.