Finding the Third Proportional to 72,691.25 and 154,186

Step by Step Solution

1. Step 1: Write the proportion equation
   72,691.25 : 154,186 = 154,186 : x
2. Step 2: Convert to fraction form
   72,691.25/154,186 = 154,186/x
3. Step 3: Cross multiply
   72,691.25x = 154,186 × 154,186
4. Step 4: Simplify right side
   72,691.25x = 23,773,322,596
5. Step 5: Solve for x
   x = 23,773,322,596/72,691.25
6. Step 6: Final answer
   x = 327,045.18