Finding the Third Proportional to 303,729 and 613,882.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,729 : 613,882.50 = 613,882.50 : x
2. Step 2: Convert to fraction form
   303,729/613,882.50 = 613,882.50/x
3. Step 3: Cross multiply
   303,729x = 613,882.50 × 613,882.50
4. Step 4: Simplify right side
   303,729x = 376,851,723,806.25
5. Step 5: Solve for x
   x = 376,851,723,806.25/303,729
6. Step 6: Final answer
   x = 1,240,749.89