Finding the Third Proportional to 72,648.75 and 109,046.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,648.75 : 109,046.25 = 109,046.25 : x
2. Step 2: Convert to fraction form
   72,648.75/109,046.25 = 109,046.25/x
3. Step 3: Cross multiply
   72,648.75x = 109,046.25 × 109,046.25
4. Step 4: Simplify right side
   72,648.75x = 11,891,084,639.06
5. Step 5: Solve for x
   x = 11,891,084,639.06/72,648.75
6. Step 6: Final answer
   x = 163,679.14