In the event that the question of incurring indebtedness, as described in section 702, is approved by a majority of those voting on the question in accordance with section 7(a)(3) of Article VIII of the Constitution of Pennsylvania, the Governor, Auditor General and State Treasurer are hereby authorized and directed to borrow, on the credit of the Commonwealth, such sum or sums of money not exceeding in the aggregate the sum of $200,000,000, as may be necessary to carry out the purposes of this chapter.