Finding the Third Proportional to 71,920.41 and 111,461.06

Step by Step Solution

1. Step 1: Write the proportion equation
   71,920.41 : 111,461.06 = 111,461.06 : x
2. Step 2: Convert to fraction form
   71,920.41/111,461.06 = 111,461.06/x
3. Step 3: Cross multiply
   71,920.41x = 111,461.06 × 111,461.06
4. Step 4: Simplify right side
   71,920.41x = 12,423,568,453.63
5. Step 5: Solve for x
   x = 12,423,568,453.63/71,920.41
6. Step 6: Final answer
   x = 172,740.52