Finding the Third Proportional to 56,956.50 and 131,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,956.50 : 131,857.50 = 131,857.50 : x
2. Step 2: Convert to fraction form
   56,956.50/131,857.50 = 131,857.50/x
3. Step 3: Cross multiply
   56,956.50x = 131,857.50 × 131,857.50
4. Step 4: Simplify right side
   56,956.50x = 17,386,400,306.25
5. Step 5: Solve for x
   x = 17,386,400,306.25/56,956.50
6. Step 6: Final answer
   x = 305,257.53