A student is solving a physics problem involving three charges, q1, q2, and q3. They need to correct a value based on the text.

My apologies, Mukamwiza. I noticed an error in the charge value for $q_3$ from the problem description. The text states "a $-5.0 \times 10^{-6}$ C charge", not $5.0 \times 10^{-6}$ C as I initially interpreted from the diagram label. Let's correct that and complete the calculation.

Let the charges be:
$q_1 = 8.0 \times 10^{-6}$ C (left charge)
$q_2 = 2.0 \times 10^{-6}$ C (middle charge)
$q_3 = -5.0 \times 10^{-6}$ C (right charge, as stated in the problem text)