Find an equation for the sphere with center and passing through the point

Turkey temperature = 185 F

Room temperature = 70 F

after 30 minutes if turkey's temperature  = 150 F

so    150  = 185 - K( 185 -70) 30

      K =  ( 185- 150)  /   30 (115)

       K =   35   /  3450

       K=    7  /  690

T(45)  =   185 - (45) ( 7 / 690) (115)

          185 - 52.5   =  132.5

  Temperature after 45 minutes =   132.5 F