Finding the Third Proportional to 91,113.75 and 191,441.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,113.75 : 191,441.25 = 191,441.25 : x
2. Step 2: Convert to fraction form
   91,113.75/191,441.25 = 191,441.25/x
3. Step 3: Cross multiply
   91,113.75x = 191,441.25 × 191,441.25
4. Step 4: Simplify right side
   91,113.75x = 36,649,752,201.56
5. Step 5: Solve for x
   x = 36,649,752,201.56/91,113.75
6. Step 6: Final answer
   x = 402,241.73