Finding the Third Proportional to 31,630.50 and 67,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,630.50 : 67,951.50 = 67,951.50 : x
2. Step 2: Convert to fraction form
   31,630.50/67,951.50 = 67,951.50/x
3. Step 3: Cross multiply
   31,630.50x = 67,951.50 × 67,951.50
4. Step 4: Simplify right side
   31,630.50x = 4,617,406,352.25
5. Step 5: Solve for x
   x = 4,617,406,352.25/31,630.50
6. Step 6: Final answer
   x = 145,979.56