Suppose a certain ionized atom produces an emission line in accordance with the Bohr model, but the number of protons in the nucleus Z is not known. A group of lines in the spectrum forms a series in which the shortest wavelength is 22.8 nm and the longest is 41.0 nm. Atoms with Z greater than 1 can be described approximately by a modified version of Equations 29.15 and 29.16, which can be written as 

Find the second longest wavelength in this series of lines.