Finding the Third Proportional to 303,477 and 660,439.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,477 : 660,439.50 = 660,439.50 : x
2. Step 2: Convert to fraction form
   303,477/660,439.50 = 660,439.50/x
3. Step 3: Cross multiply
   303,477x = 660,439.50 × 660,439.50
4. Step 4: Simplify right side
   303,477x = 436,180,333,160.25
5. Step 5: Solve for x
   x = 436,180,333,160.25/303,477
6. Step 6: Final answer
   x = 1,437,276.41