Finding the Third Proportional to 81,606.50 and 173,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,606.50 : 173,009.50 = 173,009.50 : x
2. Step 2: Convert to fraction form
   81,606.50/173,009.50 = 173,009.50/x
3. Step 3: Cross multiply
   81,606.50x = 173,009.50 × 173,009.50
4. Step 4: Simplify right side
   81,606.50x = 29,932,287,090.25
5. Step 5: Solve for x
   x = 29,932,287,090.25/81,606.50
6. Step 6: Final answer
   x = 366,788.03