Finding the Third Proportional to 105,004.69 and 161,490.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,004.69 : 161,490.38 = 161,490.38 : x
2. Step 2: Convert to fraction form
   105,004.69/161,490.38 = 161,490.38/x
3. Step 3: Cross multiply
   105,004.69x = 161,490.38 × 161,490.38
4. Step 4: Simplify right side
   105,004.69x = 26,079,141,217.64
5. Step 5: Solve for x
   x = 26,079,141,217.64/105,004.69
6. Step 6: Final answer
   x = 248,361.69