Finding the Third Proportional to 31,072.50 and 67,682.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,072.50 : 67,682.44 = 67,682.44 : x
2. Step 2: Convert to fraction form
   31,072.50/67,682.44 = 67,682.44/x
3. Step 3: Cross multiply
   31,072.50x = 67,682.44 × 67,682.44
4. Step 4: Simplify right side
   31,072.50x = 4,580,912,345.94
5. Step 5: Solve for x
   x = 4,580,912,345.94/31,072.50
6. Step 6: Final answer
   x = 147,426.58