Probability for Difference in Sample Means

Two independent random samples, of sizes $n_1 = 36$ and $n_2 = 64$, are selected from two normally distributed populations. The first population has a mean of $μ_1 = 75$ and a standard deviation of $σ_1 = 12$. The second population has a mean of $μ_2 = 68$ and a standard deviation of $σ_2 = 15$. What is the probability that the difference between the sample means, ($\bar{x}_1 - \bar{x}_2$), is greater than 10?