Finding the Third Proportional to 144,592.59 and 216,057.38

Step by Step Solution

1. Step 1: Write the proportion equation
   144,592.59 : 216,057.38 = 216,057.38 : x
2. Step 2: Convert to fraction form
   144,592.59/216,057.38 = 216,057.38/x
3. Step 3: Cross multiply
   144,592.59x = 216,057.38 × 216,057.38
4. Step 4: Simplify right side
   144,592.59x = 46,680,789,291.89
5. Step 5: Solve for x
   x = 46,680,789,291.89/144,592.59
6. Step 6: Final answer
   x = 322,843.57