Finding the Third Proportional to 72,460 and 153,638

Step by Step Solution

1. Step 1: Write the proportion equation
   72,460 : 153,638 = 153,638 : x
2. Step 2: Convert to fraction form
   72,460/153,638 = 153,638/x
3. Step 3: Cross multiply
   72,460x = 153,638 × 153,638
4. Step 4: Simplify right side
   72,460x = 23,604,635,044
5. Step 5: Solve for x
   x = 23,604,635,044/72,460
6. Step 6: Final answer
   x = 325,760.90