Finding the Third Proportional to 105,726.38 and 161,938.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,726.38 : 161,938.69 = 161,938.69 : x
2. Step 2: Convert to fraction form
   105,726.38/161,938.69 = 161,938.69/x
3. Step 3: Cross multiply
   105,726.38x = 161,938.69 × 161,938.69
4. Step 4: Simplify right side
   105,726.38x = 26,224,138,509.22
5. Step 5: Solve for x
   x = 26,224,138,509.22/105,726.38
6. Step 6: Final answer
   x = 248,037.81