A student uses a 2.00-m-long steel string with a diameter

A student uses a 2.00-m-long steel string with a diameter of 0.90 mm for a standing wave experiment. The tension on the string is tweaked so that the second harmonic of this string vibrates at 23.0 Hz . (?steel=7.8·103 kg/m3) If you wanted to increase the first harmonic frequency by 58 % , what would be the tension in the string? Express your answer using two significant figures.