Solve the following proportion for the unknown quantity: 
Definitions:
Fluorescent Lighting
A type of lighting technology that uses electricity to excite mercury vapor, producing short-wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.
Fire Extinguisher
A device filled with chemicals used to put out fires by cooling the burning material, depriving the flame of oxygen, or inhibiting the chemical reactions occurring.
Neutral Protamine Hagedorn
A type of insulin with a medium duration of action, often used in the management of diabetes.
Regular Insulin
A form of insulin with a short duration of action, used to control blood sugar levels in people with diabetes.
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