Whoa, pardner, give us a chance to digest what your question was. If you did your calculations right and didn't halve the extract and double the water expected, your OG is probably about 1.050 to 1.055. The difference between that and what you measured is poor mixing and getting more water than wort for you sample. It's really difficult to get the concentrated wort to mix well with water so just go with the OG I estimated because the malt extract will have a guaranteed amount of sugars in it.
You are expected to lose some water to evaporation when you boil the wort but the sugars stay there which then makes your wort more conventrated and more dense so it is harder to get a good mix when you add the top off and that gives you either a very low reading with the hydrometer or extremely high depending on where you got the sample from. Most of the time it will be very low but the amount of sugars is still where it should be to get you the right OG so just relax and let the yeast do the mixing and making beer. You don't need or want to add anything at this point. Your beer will be about 5% alcohol.