Finding the Third Proportional to 91,091.25 and 200,117.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,091.25 : 200,117.25 = 200,117.25 : x
2. Step 2: Convert to fraction form
   91,091.25/200,117.25 = 200,117.25/x
3. Step 3: Cross multiply
   91,091.25x = 200,117.25 × 200,117.25
4. Step 4: Simplify right side
   91,091.25x = 40,046,913,747.56
5. Step 5: Solve for x
   x = 40,046,913,747.56/91,091.25
6. Step 6: Final answer
   x = 439,635.13