Alloy Supply Co$.$ has a new project that will require the company to borrow $$3,000,000.$ Acme has made an agreement with three lenders for the needed financing. First National Bank will give $$1,500,000$ and wants $6\%$ interest on the loan. Banner Bank will give $$1,000,000$ and wants $9\%$ interest on the loan. Western National Bank will give $$500,000$ and wants $7\%$ interest on the loan. What is the weighted average cost of capital to acquire the $$3,000,000?$