Finding the Third Proportional to 122,691 and 173,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,691 : 173,986.50 = 173,986.50 : x
2. Step 2: Convert to fraction form
   122,691/173,986.50 = 173,986.50/x
3. Step 3: Cross multiply
   122,691x = 173,986.50 × 173,986.50
4. Step 4: Simplify right side
   122,691x = 30,271,302,182.25
5. Step 5: Solve for x
   x = 30,271,302,182.25/122,691
6. Step 6: Final answer
   x = 246,727.98