The conditions are: x < c, x < b, and x > 0 (since c² is always non-negative, and for c²x > 0, c cannot be 0, so c² > 0, which implies x > 0).
Combining these, we need 0 < x < min(b, c).
For example, if c = 2 and b = 3, then 0 < x < 2. We can choose x = 1.