Finding the Third Proportional to 31,529 and 67,270

Step by Step Solution

1. Step 1: Write the proportion equation
   31,529 : 67,270 = 67,270 : x
2. Step 2: Convert to fraction form
   31,529/67,270 = 67,270/x
3. Step 3: Cross multiply
   31,529x = 67,270 × 67,270
4. Step 4: Simplify right side
   31,529x = 4,525,252,900
5. Step 5: Solve for x
   x = 4,525,252,900/31,529
6. Step 6: Final answer
   x = 143,526.69