Finding the Third Proportional to 303,522 and 664,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,522 : 664,861.50 = 664,861.50 : x
2. Step 2: Convert to fraction form
   303,522/664,861.50 = 664,861.50/x
3. Step 3: Cross multiply
   303,522x = 664,861.50 × 664,861.50
4. Step 4: Simplify right side
   303,522x = 442,040,814,182.25
5. Step 5: Solve for x
   x = 442,040,814,182.25/303,522
6. Step 6: Final answer
   x = 1,456,371.58