Finding the Third Proportional to 68,426 and 108,964.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,426 : 108,964.50 = 108,964.50 : x
2. Step 2: Convert to fraction form
   68,426/108,964.50 = 108,964.50/x
3. Step 3: Cross multiply
   68,426x = 108,964.50 × 108,964.50
4. Step 4: Simplify right side
   68,426x = 11,873,262,260.25
5. Step 5: Solve for x
   x = 11,873,262,260.25/68,426
6. Step 6: Final answer
   x = 173,519.75