Finding the Third Proportional to 131,385.50 and 200,359

Step by Step Solution

1. Step 1: Write the proportion equation
   131,385.50 : 200,359 = 200,359 : x
2. Step 2: Convert to fraction form
   131,385.50/200,359 = 200,359/x
3. Step 3: Cross multiply
   131,385.50x = 200,359 × 200,359
4. Step 4: Simplify right side
   131,385.50x = 40,143,728,881
5. Step 5: Solve for x
   x = 40,143,728,881/131,385.50
6. Step 6: Final answer
   x = 305,541.55