coulp anyone help please

1 pts You own a portfolio equally invested in a risk-free asset and two stocks (If one of the stocks has a beta of 0.63 and the total portfolio is equally as risky as the market, what must the beta be for the other stock in your portfolio? (Hint: Remember that the market has a Beta-1; also remember that equally invested means that each asset has the same weight- since there are 3 assets, each asset's weight is 1/3 or 0.3333. Use 0.333333, and not only 0.33, sorry, calculation is sensitive to it). Enter the answer with 4 decimals (e.g. 1.1234)