Finding the Third Proportional to 303,057 and 659,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,057 : 659,317.50 = 659,317.50 : x
2. Step 2: Convert to fraction form
   303,057/659,317.50 = 659,317.50/x
3. Step 3: Cross multiply
   303,057x = 659,317.50 × 659,317.50
4. Step 4: Simplify right side
   303,057x = 434,699,565,806.25
5. Step 5: Solve for x
   x = 434,699,565,806.25/303,057
6. Step 6: Final answer
   x = 1,434,382.20