Finding the Third Proportional to 131,584.50 and 198,558

Step by Step Solution

1. Step 1: Write the proportion equation
   131,584.50 : 198,558 = 198,558 : x
2. Step 2: Convert to fraction form
   131,584.50/198,558 = 198,558/x
3. Step 3: Cross multiply
   131,584.50x = 198,558 × 198,558
4. Step 4: Simplify right side
   131,584.50x = 39,425,279,364
5. Step 5: Solve for x
   x = 39,425,279,364/131,584.50
6. Step 6: Final answer
   x = 299,619.48