Answer
$260\;Hz$
Work Step by Step
One of the harmonic frequencies for a particular string under tension is $325\;Hz$. The next higher harmonic frequency is $390\;Hz$.
Therefore, the lowest resonant frequency, i.e., the fundamental mode of the string is
$f_1=(360-325)\;Hz=65\;Hz$
Thus, the next higher harmonic frequency after 195 Hz is $(195+65)\;Hz=260\;Hz$