Finding the Third Proportional to 303,351 and 660,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,351 : 660,211.50 = 660,211.50 : x
2. Step 2: Convert to fraction form
   303,351/660,211.50 = 660,211.50/x
3. Step 3: Cross multiply
   303,351x = 660,211.50 × 660,211.50
4. Step 4: Simplify right side
   303,351x = 435,879,224,732.25
5. Step 5: Solve for x
   x = 435,879,224,732.25/303,351
6. Step 6: Final answer
   x = 1,436,880.79