Finding the Third Proportional to 85,114.13 and 123,661.69

Step by Step Solution

1. Step 1: Write the proportion equation
   85,114.13 : 123,661.69 = 123,661.69 : x
2. Step 2: Convert to fraction form
   85,114.13/123,661.69 = 123,661.69/x
3. Step 3: Cross multiply
   85,114.13x = 123,661.69 × 123,661.69
4. Step 4: Simplify right side
   85,114.13x = 15,292,212,955.35
5. Step 5: Solve for x
   x = 15,292,212,955.35/85,114.13
6. Step 6: Final answer
   x = 179,667.16