Finding the Third Proportional to 131,361 and 203,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,361 : 203,818.50 = 203,818.50 : x
2. Step 2: Convert to fraction form
   131,361/203,818.50 = 203,818.50/x
3. Step 3: Cross multiply
   131,361x = 203,818.50 × 203,818.50
4. Step 4: Simplify right side
   131,361x = 41,541,980,942.25
5. Step 5: Solve for x
   x = 41,541,980,942.25/131,361
6. Step 6: Final answer
   x = 316,242.88