Finding the Third Proportional to 303,923 and 661,360.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,923 : 661,360.50 = 661,360.50 : x
2. Step 2: Convert to fraction form
   303,923/661,360.50 = 661,360.50/x
3. Step 3: Cross multiply
   303,923x = 661,360.50 × 661,360.50
4. Step 4: Simplify right side
   303,923x = 437,397,710,960.25
5. Step 5: Solve for x
   x = 437,397,710,960.25/303,923
6. Step 6: Final answer
   x = 1,439,172.79