Finding the Third Proportional to 80,961.75 and 113,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,961.75 : 113,215.50 = 113,215.50 : x
2. Step 2: Convert to fraction form
   80,961.75/113,215.50 = 113,215.50/x
3. Step 3: Cross multiply
   80,961.75x = 113,215.50 × 113,215.50
4. Step 4: Simplify right side
   80,961.75x = 12,817,749,440.25
5. Step 5: Solve for x
   x = 12,817,749,440.25/80,961.75
6. Step 6: Final answer
   x = 158,318.58