Finding the Third Proportional to 81,474 and 173,712

Step by Step Solution

1. Step 1: Write the proportion equation
   81,474 : 173,712 = 173,712 : x
2. Step 2: Convert to fraction form
   81,474/173,712 = 173,712/x
3. Step 3: Cross multiply
   81,474x = 173,712 × 173,712
4. Step 4: Simplify right side
   81,474x = 30,175,858,944
5. Step 5: Solve for x
   x = 30,175,858,944/81,474
6. Step 6: Final answer
   x = 370,374.09