Answer:
The journal entries are as follows:
(i) On March 2,
Inventory A/c Dr. $897,900
   To Accounts payable - Shamrock company   $897,900
(To record the inventory purchased on account)
(ii) On March 6,
Accounts payable - Shamrock company A/c Dr. $100,900
    To inventory A/c                              $100,900
(To record the balance due)