The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t2.164

The Śulbasūtras of Baudhāyana, Āpastamba, Kātyāyana and Mānava: With Text, English Translation and Commentary c8.t2.164

Hence √2, the side of the desired square is given approximately by 1 + 1/3 + 1/3.4 - 1/3.4.34.