Finding the Third Proportional to 303,510 and 456,046.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,510 : 456,046.50 = 456,046.50 : x
2. Step 2: Convert to fraction form
   303,510/456,046.50 = 456,046.50/x
3. Step 3: Cross multiply
   303,510x = 456,046.50 × 456,046.50
4. Step 4: Simplify right side
   303,510x = 207,978,410,162.25
5. Step 5: Solve for x
   x = 207,978,410,162.25/303,510
6. Step 6: Final answer
   x = 685,244.01