To find the largest solution to five decimal places, start with a reasonable initial guess for Xo and iterate until the desired precision is achieved. Each iteration should be compared to the previous one, and the process continues until the difference is sufficiently small. Caution is advised, as Newton's method may not always converge; if the differences increase or oscillate, a new initial guess should be tried. Implementing a program can streamline this process, and it's recommended to limit iterations to around 30 to avoid endless loops. If convergence isn't reached within this limit, users should be prompted to choose a new starting value.