Finding the Third Proportional to 31,576 and 67,530

Step by Step Solution

1. Step 1: Write the proportion equation
   31,576 : 67,530 = 67,530 : x
2. Step 2: Convert to fraction form
   31,576/67,530 = 67,530/x
3. Step 3: Cross multiply
   31,576x = 67,530 × 67,530
4. Step 4: Simplify right side
   31,576x = 4,560,300,900
5. Step 5: Solve for x
   x = 4,560,300,900/31,576
6. Step 6: Final answer
   x = 144,423.01