Finding the Third Proportional to 91,944.75 and 198,404.06

Step by Step Solution

1. Step 1: Write the proportion equation
   91,944.75 : 198,404.06 = 198,404.06 : x
2. Step 2: Convert to fraction form
   91,944.75/198,404.06 = 198,404.06/x
3. Step 3: Cross multiply
   91,944.75x = 198,404.06 × 198,404.06
4. Step 4: Simplify right side
   91,944.75x = 39,364,172,016.50
5. Step 5: Solve for x
   x = 39,364,172,016.50/91,944.75
6. Step 6: Final answer
   x = 428,128.54