Finding the Third Proportional to 303,196.50 and 660,190.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,196.50 : 660,190.50 = 660,190.50 : x
2. Step 2: Convert to fraction form
   303,196.50/660,190.50 = 660,190.50/x
3. Step 3: Cross multiply
   303,196.50x = 660,190.50 × 660,190.50
4. Step 4: Simplify right side
   303,196.50x = 435,851,496,290.25
5. Step 5: Solve for x
   x = 435,851,496,290.25/303,196.50
6. Step 6: Final answer
   x = 1,437,521.53