Finding the Third Proportional to 72,724 and 154,236

Step by Step Solution

1. Step 1: Write the proportion equation
   72,724 : 154,236 = 154,236 : x
2. Step 2: Convert to fraction form
   72,724/154,236 = 154,236/x
3. Step 3: Cross multiply
   72,724x = 154,236 × 154,236
4. Step 4: Simplify right side
   72,724x = 23,788,743,696
5. Step 5: Solve for x
   x = 23,788,743,696/72,724
6. Step 6: Final answer
   x = 327,109.95