Two point charges are fixed along the \(y\)-axis: a charge \(q_1 = +5.0\text{ }\mu\text{C}\) at \((0, +0.40\text{ m})\) and a charge \(q_2 = -5.0\text{ }\mu\text{C}\) at \((0, -0.40\text{ m})\). A third point charge \(q_3 = +2.5\text{ }\mu\text{C}\) is located on the \(x\)-axis at \((+0.30\text{ m}, 0)\). What is the magnitude of the net electrostatic force exerted on \(q_3\) by the two fixed charges?