Finding the Third Proportional to 71,357.63 and 111,121.88

Step by Step Solution

1. Step 1: Write the proportion equation
   71,357.63 : 111,121.88 = 111,121.88 : x
2. Step 2: Convert to fraction form
   71,357.63/111,121.88 = 111,121.88/x
3. Step 3: Cross multiply
   71,357.63x = 111,121.88 × 111,121.88
4. Step 4: Simplify right side
   71,357.63x = 12,348,071,103.52
5. Step 5: Solve for x
   x = 12,348,071,103.52/71,357.63
6. Step 6: Final answer
   x = 173,044.87