Finding the Third Proportional to 133,099.50 and 288,330

Step by Step Solution

1. Step 1: Write the proportion equation
   133,099.50 : 288,330 = 288,330 : x
2. Step 2: Convert to fraction form
   133,099.50/288,330 = 288,330/x
3. Step 3: Cross multiply
   133,099.50x = 288,330 × 288,330
4. Step 4: Simplify right side
   133,099.50x = 83,134,188,900
5. Step 5: Solve for x
   x = 83,134,188,900/133,099.50
6. Step 6: Final answer
   x = 624,601.81