Finding the Third Proportional to 68,426 and 105,039

Step by Step Solution

1. Step 1: Write the proportion equation
   68,426 : 105,039 = 105,039 : x
2. Step 2: Convert to fraction form
   68,426/105,039 = 105,039/x
3. Step 3: Cross multiply
   68,426x = 105,039 × 105,039
4. Step 4: Simplify right side
   68,426x = 11,033,191,521
5. Step 5: Solve for x
   x = 11,033,191,521/68,426
6. Step 6: Final answer
   x = 161,242.68