Finding the Third Proportional to 67,872 and 147,792

Step by Step Solution

1. Step 1: Write the proportion equation
   67,872 : 147,792 = 147,792 : x
2. Step 2: Convert to fraction form
   67,872/147,792 = 147,792/x
3. Step 3: Cross multiply
   67,872x = 147,792 × 147,792
4. Step 4: Simplify right side
   67,872x = 21,842,475,264
5. Step 5: Solve for x
   x = 21,842,475,264/67,872
6. Step 6: Final answer
   x = 321,818.65