Finding the Third Proportional to 81,288.50 and 125,042

Step by Step Solution

1. Step 1: Write the proportion equation
   81,288.50 : 125,042 = 125,042 : x
2. Step 2: Convert to fraction form
   81,288.50/125,042 = 125,042/x
3. Step 3: Cross multiply
   81,288.50x = 125,042 × 125,042
4. Step 4: Simplify right side
   81,288.50x = 15,635,501,764
5. Step 5: Solve for x
   x = 15,635,501,764/81,288.50
6. Step 6: Final answer
   x = 192,345.80