Finding the Third Proportional to 71,540.25 and 141,279

Step by Step Solution

1. Step 1: Write the proportion equation
   71,540.25 : 141,279 = 141,279 : x
2. Step 2: Convert to fraction form
   71,540.25/141,279 = 141,279/x
3. Step 3: Cross multiply
   71,540.25x = 141,279 × 141,279
4. Step 4: Simplify right side
   71,540.25x = 19,959,755,841
5. Step 5: Solve for x
   x = 19,959,755,841/71,540.25
6. Step 6: Final answer
   x = 279,000.36