Finding the Third Proportional to 81,275 and 173,818

Step by Step Solution

1. Step 1: Write the proportion equation
   81,275 : 173,818 = 173,818 : x
2. Step 2: Convert to fraction form
   81,275/173,818 = 173,818/x
3. Step 3: Cross multiply
   81,275x = 173,818 × 173,818
4. Step 4: Simplify right side
   81,275x = 30,212,697,124
5. Step 5: Solve for x
   x = 30,212,697,124/81,275
6. Step 6: Final answer
   x = 371,734.20