Finding the Third Proportional to 71,746.25 and 111,720

Step by Step Solution

1. Step 1: Write the proportion equation
   71,746.25 : 111,720 = 111,720 : x
2. Step 2: Convert to fraction form
   71,746.25/111,720 = 111,720/x
3. Step 3: Cross multiply
   71,746.25x = 111,720 × 111,720
4. Step 4: Simplify right side
   71,746.25x = 12,481,358,400
5. Step 5: Solve for x
   x = 12,481,358,400/71,746.25
6. Step 6: Final answer
   x = 173,965.31