Finding the Third Proportional to 81,799 and 173,486

Step by Step Solution

1. Step 1: Write the proportion equation
   81,799 : 173,486 = 173,486 : x
2. Step 2: Convert to fraction form
   81,799/173,486 = 173,486/x
3. Step 3: Cross multiply
   81,799x = 173,486 × 173,486
4. Step 4: Simplify right side
   81,799x = 30,097,392,196
5. Step 5: Solve for x
   x = 30,097,392,196/81,799
6. Step 6: Final answer
   x = 367,943.28