Finding the Third Proportional to 162,912 and 238,540

Step by Step Solution

1. Step 1: Write the proportion equation
   162,912 : 238,540 = 238,540 : x
2. Step 2: Convert to fraction form
   162,912/238,540 = 238,540/x
3. Step 3: Cross multiply
   162,912x = 238,540 × 238,540
4. Step 4: Simplify right side
   162,912x = 56,901,331,600
5. Step 5: Solve for x
   x = 56,901,331,600/162,912
6. Step 6: Final answer
   x = 349,276.49