Finding the Third Proportional to 72,659 and 154,120

Step by Step Solution

1. Step 1: Write the proportion equation
   72,659 : 154,120 = 154,120 : x
2. Step 2: Convert to fraction form
   72,659/154,120 = 154,120/x
3. Step 3: Cross multiply
   72,659x = 154,120 × 154,120
4. Step 4: Simplify right side
   72,659x = 23,752,974,400
5. Step 5: Solve for x
   x = 23,752,974,400/72,659
6. Step 6: Final answer
   x = 326,910.29