Thread the jump-ring side of the chain necklace through the side-to-side holes in each pearl ball bead, one bead at a time.
If you are not able to match up the chain with the opposite exit-side bead hole, try this: Attach a piece of thin wire to the jump-ring side of the chain necklace. Use the wire "needle" to string on the pearl ball beads. When done, remove the piece of wire.
3 each #20-660-011 Freshwater Pearl Bead, Ball, 10-12mm - White