Finding intersecting row and column on data chart based on data input...

Hello,

In my table I want to create a user form where the individual would enter a number which would correspond for the Header Row.
and
The user would also enter a Number that would correspond for the first main column (Column B).

Based on the numbers entered, I want to find the next highest number.

For example if 61 is entered 66 would be chosen.
-Same would be for the numbers entered to find the column.

Based on the numbers entered I would like to find the intersecting cell.

can anyone give me some guidance on this task or some idea behind basic code I can embed in a user form?

Thanks