James McGrath offers an insightful commentary on biblical literalism. In pointing out that there really isn't any way to reconcile Matthew's "three days and three nights" with the fact that Good Friday and Easter Sunday are only two days apart, he notes that there are certainly scholarly interpretations that look at the symbolism associated with the number three. But, as he notes,
for those who claim to be Biblical literalists, scholarly considerations of that sort shouldn't matter. Instead, self-proclaimed "Biblical literalists" should be arguing for the celebration either of Good Thursday or of Easter Monday.
But I have a better suggestion. If you are someone that wants a perfect Scripture that speak inerrantly and with precision, please go elsewhere. Stop trying to force Christianity and the Bible into this mold. It just doesn't fit, and in trying to force it to, you do harm to the reputation of the Bible and its appreciation by those who actually read and study it, in detail, and are genuinely interested in understanding it on its own terms.