An alloy that has a plane strain fracture toughness of 45 MPaLaTeX: \sqrt{m}m is used to fabricate a structural component. Experiments revealed that this component fails at a stress of 300 MPa when the maximum length of a surface crack is 0.95 mm. For the same component, find the maximum allowable surface crack length (in mm) without fracture if it is exposed to a stress of 300 MPa and made from another alloy with a plane-strain fracture toughness of 57.7 MPaLaTeX: \sqrt{m}m