Finding the Third Proportional to 91,099.50 and 199,749

Step by Step Solution

1. Step 1: Write the proportion equation
   91,099.50 : 199,749 = 199,749 : x
2. Step 2: Convert to fraction form
   91,099.50/199,749 = 199,749/x
3. Step 3: Cross multiply
   91,099.50x = 199,749 × 199,749
4. Step 4: Simplify right side
   91,099.50x = 39,899,663,001
5. Step 5: Solve for x
   x = 39,899,663,001/91,099.50
6. Step 6: Final answer
   x = 437,978.95