Conditional Formatting - Highlighting One Or Two Numbers In A Column?

I want to have Excel highlight one or two numbers/cells in one column based on the value in another cell. I am attempting to do this using Conditional Formatting.

For example, if X1 is BETWEEN A2 and A3, I want to highlight A2 AND A3. I have used various AND and IF functions to achieve this goal.

Also, if X1 is EQUAL to A2, I want A2 to be highlighted. This is easy to do with a simple formula.

But my problem is this: if X1 is equal to A2, I want ONLY A2 highlighted. If X1 is between A2 and A3, I want BOTH A2 and A3 highlighted. I cannot figure out how to achieve both. For example, when X1 = A3, A2 AND A3 are being highlighted, instead of just A3. I would prefer to do this without a macro, if possible. Can this be done?

Example formulas I have tried which easily achieve the highlighting of two cells when the value is between them:

Condition 1=IF(AND($I$35>I8,$I$35<I7),1," ")+IF($I$35<>I7,1," ")
Condition 2=IF(AND($I$35<I6,$I$35>I8),1," ")+IF($I$35<>I7,1," ")

It appears that the +IF, etc. functions are not doing anything.

This is more complicated by the fact that the value of, in the above example, I35 is based on a value from another sheet (I used a function to transfer a value from one sheet to I35 in the other sheet). As data are entered on Sheet1, the value in I35 in Sheet2 changes.