We can calculate the height of the television using the Pythagorean theorem. Let h be the height of the television.
Given that the width of the television is 46 inches and the diagonal (which is the hypotenuse of a right triangle) is 72 inches, we can write the equation:
h^2 + 46^2 = 72^2
Simplifying this equation, we get:
h^2 + 2116 = 5184
Subtracting 2116 from both sides gives:
h^2 = 3068
Taking the square root of both sides, we get:
h ≈ 55.4
Rounding off to the nearest inch, the height of the television is 55 inches. Therefore, the answer is 55 inches.