Finding the Third Proportional to 31,442 and 67,436

Step by Step Solution

1. Step 1: Write the proportion equation
   31,442 : 67,436 = 67,436 : x
2. Step 2: Convert to fraction form
   31,442/67,436 = 67,436/x
3. Step 3: Cross multiply
   31,442x = 67,436 × 67,436
4. Step 4: Simplify right side
   31,442x = 4,547,614,096
5. Step 5: Solve for x
   x = 4,547,614,096/31,442
6. Step 6: Final answer
   x = 144,635.01