Finding the Third Proportional to 72,916 and 154,499

Step by Step Solution

1. Step 1: Write the proportion equation
   72,916 : 154,499 = 154,499 : x
2. Step 2: Convert to fraction form
   72,916/154,499 = 154,499/x
3. Step 3: Cross multiply
   72,916x = 154,499 × 154,499
4. Step 4: Simplify right side
   72,916x = 23,869,941,001
5. Step 5: Solve for x
   x = 23,869,941,001/72,916
6. Step 6: Final answer
   x = 327,362.18