Finding the Third Proportional to 72,258 and 154,479

Step by Step Solution

1. Step 1: Write the proportion equation
   72,258 : 154,479 = 154,479 : x
2. Step 2: Convert to fraction form
   72,258/154,479 = 154,479/x
3. Step 3: Cross multiply
   72,258x = 154,479 × 154,479
4. Step 4: Simplify right side
   72,258x = 23,863,761,441
5. Step 5: Solve for x
   x = 23,863,761,441/72,258
6. Step 6: Final answer
   x = 330,257.71