Finding the Third Proportional to 81,951.75 and 123,681

Step by Step Solution

1. Step 1: Write the proportion equation
   81,951.75 : 123,681 = 123,681 : x
2. Step 2: Convert to fraction form
   81,951.75/123,681 = 123,681/x
3. Step 3: Cross multiply
   81,951.75x = 123,681 × 123,681
4. Step 4: Simplify right side
   81,951.75x = 15,296,989,761
5. Step 5: Solve for x
   x = 15,296,989,761/81,951.75
6. Step 6: Final answer
   x = 186,658.49