Finding the Third Proportional to 56,956.50 and 90,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,956.50 : 90,520.50 = 90,520.50 : x
2. Step 2: Convert to fraction form
   56,956.50/90,520.50 = 90,520.50/x
3. Step 3: Cross multiply
   56,956.50x = 90,520.50 × 90,520.50
4. Step 4: Simplify right side
   56,956.50x = 8,193,960,920.25
5. Step 5: Solve for x
   x = 8,193,960,920.25/56,956.50
6. Step 6: Final answer
   x = 143,863.49