Place the pot on a warm spot, close to a heath source if needed. 25-35°C (77-95°F) will do. The seeds do not need light in this stage. The time required for the seeds to germinate varies form species to species and depends on multiple conditions of course but it could be very quick; the Cycas by exemple may already germinate after only a couple of days! But more patience can be needed, just hang on and provide the ideal conditions.
As soon as the seed has germinated and its root is plunging down, it needs to be transplanted. Take a container with sufficient height and with draining holes in the bottom. Fill up with a quality potting soil and some perlite or grit for optimal drainage. Do not use (to much) fertilizer yet, to prevent to roots form burning. Now your Cycad is good to go for a while and only needs to be transplanted again when new roots will grow from the drainage holes in the bottom.
Add fertilizer in spring and during summer (growing season), during winter this makes little sense. Organic fertilizers are good fertilizers but be careful with non organic fertilizers which are more agressive. Do always respect the manufacturers prescriptions.
Certain Cycads are hardy enough to be planted outside. Do inform yourself on the specific needs and especially on the hardiness and your local climat. A place form full sun to partial shade works the best.