Finding the Third Proportional to 69,036.75 and 109,118.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,036.75 : 109,118.25 = 109,118.25 : x
2. Step 2: Convert to fraction form
   69,036.75/109,118.25 = 109,118.25/x
3. Step 3: Cross multiply
   69,036.75x = 109,118.25 × 109,118.25
4. Step 4: Simplify right side
   69,036.75x = 11,906,792,483.06
5. Step 5: Solve for x
   x = 11,906,792,483.06/69,036.75
6. Step 6: Final answer
   x = 172,470.35