Force journal approval above limit defined in Journal Authorization Limits form

We have been running with a newly implemented ERP over the last 9 months or so.  At the time, the Journal Authorization Limits form was configured for the Corporate Controller and VP to approve limits 10 million and 15 million dollars respectively.  Recently, they had to create a one time journal entry for 16 million, so the workflow sent approval of this entry to the Contoller, who had to send to the VP, then the workflow sent it back to the Controller.  Looks like this is happening because the journal entry is beyond both their limits.
When I log in as user SYSADMIN to review this journal entry, there is an option for me to Approve - not sure what this will  do...an educated guess would tell me that SYSADMIN approval overrides all and will approve this journal entry.