Finding the Third Proportional to 303,345 and 660,493.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,345 : 660,493.50 = 660,493.50 : x
2. Step 2: Convert to fraction form
   303,345/660,493.50 = 660,493.50/x
3. Step 3: Cross multiply
   303,345x = 660,493.50 × 660,493.50
4. Step 4: Simplify right side
   303,345x = 436,251,663,542.25
5. Step 5: Solve for x
   x = 436,251,663,542.25/303,345
6. Step 6: Final answer
   x = 1,438,136.98