Finding the Third Proportional to 200,614.50 and 311,635

Step by Step Solution

1. Step 1: Write the proportion equation
   200,614.50 : 311,635 = 311,635 : x
2. Step 2: Convert to fraction form
   200,614.50/311,635 = 311,635/x
3. Step 3: Cross multiply
   200,614.50x = 311,635 × 311,635
4. Step 4: Simplify right side
   200,614.50x = 97,116,373,225
5. Step 5: Solve for x
   x = 97,116,373,225/200,614.50
6. Step 6: Final answer
   x = 484,094.49