HELP PLEASE 100 POINTS!!!!

Given JAM and segment PB such that PB JM, what is the missing justification in the proof that JP/PA = MB/BA

HELP PLEASE 100 POINTS Given JAM and segment PB such that PB JM what is the missing justification in the proof that JPPA MBBA class=
HELP PLEASE 100 POINTS Given JAM and segment PB such that PB JM what is the missing justification in the proof that JPPA MBBA class=