DIP/Static NAT IP is not in the Same Subnet of outside Interface

Hi all,

Could you see the belowing picture, this is my requirement, I need to map a server in private network into a public IP that is not in the same subnet of our firewall outside interface. Because the example in the SRX NAT guide uses an IP that is in the same subnet of the firewall outside interface, so I'm confused if I should configure proxy-arp and how can I configure static nat or destination nat?  Thanks!