Finding the Third Proportional to 68,403 and 109,276.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,403 : 109,276.50 = 109,276.50 : x
2. Step 2: Convert to fraction form
   68,403/109,276.50 = 109,276.50/x
3. Step 3: Cross multiply
   68,403x = 109,276.50 × 109,276.50
4. Step 4: Simplify right side
   68,403x = 11,941,353,452.25
5. Step 5: Solve for x
   x = 11,941,353,452.25/68,403
6. Step 6: Final answer
   x = 174,573.53