apache ssl routing 2 dns

Hi
i'm looking for some advice on apache ssl routing for 2 url.Fyi one url is certificate is verified by GeoTrust and another url on the other site certificate is verified by Verisgn.Is that possible to routing between this two url.

Here is my scenario

I have an https:// site running on an IIS 5.0 server (https://somesite.com- Certificate verified by GeoTrust) behind an off-campus firewall. I am setting up a Apache 2.0.48 as the SSL Reverse Proxy to access backend server (https://mybackendserver.com-Certificate verified by Verisign) . The Proxy server IP is allowed in the firewall rule set.

Here is my SSL rewrite rules

SSLProxyEngine On

RewriteEngine on
ProxyPass /middleway		         https://backendserver/admin
ProxyPassReverse /middleway		 https://backendserver/admin

My main questions are:

  1. is that possible to do routing of 2 url certificate verified by two different company??

Any advice are much appreciate.

Thanks in advance