In Scheme, how can I make use of the define/lambda shorthand for nested lambda expressions within my define?

For example given the following procedure...

(define add
  (lambda (num1 num2)
    (+ num1 num2)))

One can shorten it to this:

(define (add num1 num2)
  (+ num1 num2))

However, how can I shorten the following function similarly ?

(define makeOperator
  (lambda (operator)
    (lambda (num1 num2)
      (operator num1 num2))))

;example useage - equivalent to (* 3 4):
((makeOperator *) 3 4)