Finding the Third Proportional to 200,613.38 and 311,632.31

Step by Step Solution

1. Step 1: Write the proportion equation
   200,613.38 : 311,632.31 = 311,632.31 : x
2. Step 2: Convert to fraction form
   200,613.38/311,632.31 = 311,632.31/x
3. Step 3: Cross multiply
   200,613.38x = 311,632.31 × 311,632.31
4. Step 4: Simplify right side
   200,613.38x = 97,114,698,194.10
5. Step 5: Solve for x
   x = 97,114,698,194.10/200,613.38
6. Step 6: Final answer
   x = 484,088.85