Finding the Third Proportional to 31,596.75 and 67,089.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,596.75 : 67,089.94 = 67,089.94 : x
2. Step 2: Convert to fraction form
   31,596.75/67,089.94 = 67,089.94/x
3. Step 3: Cross multiply
   31,596.75x = 67,089.94 × 67,089.94
4. Step 4: Simplify right side
   31,596.75x = 4,501,059,713.75
5. Step 5: Solve for x
   x = 4,501,059,713.75/31,596.75
6. Step 6: Final answer
   x = 142,453.25