Align 3 tables cells

Hello,
I work on an xsl file, I have two cell in a table that are in the same line

I tried to add a 3rd "table-cell" will be in the same line too, but it does not work

<fo:table-row>



<fo:table-cell border-style="solid" border-width="1px" border-color="black" padding-top="3pt" padding-bottom="10pt" number-columns-spanned="1" >

<fo:block font-family="Helvetica" font-size="10pt" text-align="center">
xxxx
</fo:block>

<fo:block font-family="Helvetica" font-size="8pt" font-weight="bold" text-align="center">
Service des ressources matérielles
Division services techniquese
</fo:block>

</fo:table-cell>





<fo:table-cell border-style="solid" border-width="1px" border-color="red" padding-top="3pt" padding-bottom="10pt" number-columns-spanned="1" >

<fo:block font-family="Helvetica" font-size="10pt" text-align="center">
Service des ressources matérielles
</fo:block>

<fo:block font-family="Helvetica" font-size="8pt" font-weight="bold" text-align="center">
Division services techniquese
</fo:block>

</fo:table-cell>


</fo:table-row>