Finding the Third Proportional to 91,127.25 and 198,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,127.25 : 198,835.50 = 198,835.50 : x
2. Step 2: Convert to fraction form
   91,127.25/198,835.50 = 198,835.50/x
3. Step 3: Cross multiply
   91,127.25x = 198,835.50 × 198,835.50
4. Step 4: Simplify right side
   91,127.25x = 39,535,556,060.25
5. Step 5: Solve for x
   x = 39,535,556,060.25/91,127.25
6. Step 6: Final answer
   x = 433,849.99