Finding the Third Proportional to 131,618 and 192,490.75

Step by Step Solution

1. Step 1: Write the proportion equation
   131,618 : 192,490.75 = 192,490.75 : x
2. Step 2: Convert to fraction form
   131,618/192,490.75 = 192,490.75/x
3. Step 3: Cross multiply
   131,618x = 192,490.75 × 192,490.75
4. Step 4: Simplify right side
   131,618x = 37,052,688,835.56
5. Step 5: Solve for x
   x = 37,052,688,835.56/131,618
6. Step 6: Final answer
   x = 281,516.88