Finding the Third Proportional to 131,544 and 198,196.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,544 : 198,196.88 = 198,196.88 : x
2. Step 2: Convert to fraction form
   131,544/198,196.88 = 198,196.88/x
3. Step 3: Cross multiply
   131,544x = 198,196.88 × 198,196.88
4. Step 4: Simplify right side
   131,544x = 39,282,001,259.77
5. Step 5: Solve for x
   x = 39,282,001,259.77/131,544
6. Step 6: Final answer
   x = 298,622.52