Finding the Third Proportional to 91,489.50 and 199,062.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,489.50 : 199,062.56 = 199,062.56 : x
2. Step 2: Convert to fraction form
   91,489.50/199,062.56 = 199,062.56/x
3. Step 3: Cross multiply
   91,489.50x = 199,062.56 × 199,062.56
4. Step 4: Simplify right side
   91,489.50x = 39,625,903,789.07
5. Step 5: Solve for x
   x = 39,625,903,789.07/91,489.50
6. Step 6: Final answer
   x = 433,119.69