Finding the Third Proportional to 81,112 and 108,499

Step by Step Solution

1. Step 1: Write the proportion equation
   81,112 : 108,499 = 108,499 : x
2. Step 2: Convert to fraction form
   81,112/108,499 = 108,499/x
3. Step 3: Cross multiply
   81,112x = 108,499 × 108,499
4. Step 4: Simplify right side
   81,112x = 11,772,033,001
5. Step 5: Solve for x
   x = 11,772,033,001/81,112
6. Step 6: Final answer
   x = 145,133.06