Finding the Third Proportional to 90,049.50 and 195,286.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,049.50 : 195,286.50 = 195,286.50 : x
2. Step 2: Convert to fraction form
   90,049.50/195,286.50 = 195,286.50/x
3. Step 3: Cross multiply
   90,049.50x = 195,286.50 × 195,286.50
4. Step 4: Simplify right side
   90,049.50x = 38,136,817,082.25
5. Step 5: Solve for x
   x = 38,136,817,082.25/90,049.50
6. Step 6: Final answer
   x = 423,509.48