Finding the Third Proportional to 72,689 and 154,184

Step by Step Solution

1. Step 1: Write the proportion equation
   72,689 : 154,184 = 154,184 : x
2. Step 2: Convert to fraction form
   72,689/154,184 = 154,184/x
3. Step 3: Cross multiply
   72,689x = 154,184 × 154,184
4. Step 4: Simplify right side
   72,689x = 23,772,705,856
5. Step 5: Solve for x
   x = 23,772,705,856/72,689
6. Step 6: Final answer
   x = 327,046.81