Finding the Third Proportional to 84,972 and 173,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   84,972 : 173,629.50 = 173,629.50 : x
2. Step 2: Convert to fraction form
   84,972/173,629.50 = 173,629.50/x
3. Step 3: Cross multiply
   84,972x = 173,629.50 × 173,629.50
4. Step 4: Simplify right side
   84,972x = 30,147,203,270.25
5. Step 5: Solve for x
   x = 30,147,203,270.25/84,972
6. Step 6: Final answer
   x = 354,789.85