Finding the Third Proportional to 81,448 and 173,648

Step by Step Solution

1. Step 1: Write the proportion equation
   81,448 : 173,648 = 173,648 : x
2. Step 2: Convert to fraction form
   81,448/173,648 = 173,648/x
3. Step 3: Cross multiply
   81,448x = 173,648 × 173,648
4. Step 4: Simplify right side
   81,448x = 30,153,627,904
5. Step 5: Solve for x
   x = 30,153,627,904/81,448
6. Step 6: Final answer
   x = 370,219.38