Finding the Third Proportional to 118,561.22 and 173,689.31

Step by Step Solution

1. Step 1: Write the proportion equation
   118,561.22 : 173,689.31 = 173,689.31 : x
2. Step 2: Convert to fraction form
   118,561.22/173,689.31 = 173,689.31/x
3. Step 3: Cross multiply
   118,561.22x = 173,689.31 × 173,689.31
4. Step 4: Simplify right side
   118,561.22x = 30,167,977,276.72
5. Step 5: Solve for x
   x = 30,167,977,276.72/118,561.22
6. Step 6: Final answer
   x = 254,450.63