Finding magnitude of electrostatic force

1. Sep 3, 2015

geryuu11

1. The problem statement, all variables and given/known data
Im having trouble posting the image sorry.
But theres three charges.
q1=30uC
q2=?
q3=60uC
q1 to q2 distance equals 30cm
q2 to q3 distance equals 60cm
q1 is left of q2 and q3 is to the right of q2.

2. Relevant equations
F=k*qq/r^2

3. The attempt at a solution

Given where q2 is, wouldn't both of the forces that q1 and q3 exerted on q2, be the same?
So I tried setting their forces equal F(subq12)=F(subq32) and I couldn't figure out what to solve for. Ive tried to look it up in my book,but this just makes it more confusing. Any help or links would be great thanks.

2. Sep 3, 2015

Staff: Mentor

Hi geryuu11, Welcome to Physics Forums.

Can you provide a question in the Problem Statement section? As it stands there's no information about what it is you're expected to do with the information given. If this is a homework question, please provide the text of the question.