Finding the Third Proportional to 303,819 and 654,382.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,819 : 654,382.50 = 654,382.50 : x
2. Step 2: Convert to fraction form
   303,819/654,382.50 = 654,382.50/x
3. Step 3: Cross multiply
   303,819x = 654,382.50 × 654,382.50
4. Step 4: Simplify right side
   303,819x = 428,216,456,306.25
5. Step 5: Solve for x
   x = 428,216,456,306.25/303,819
6. Step 6: Final answer
   x = 1,409,445.94