Finding the Third Proportional to 72,223.50 and 105,660.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,223.50 : 105,660.50 = 105,660.50 : x
2. Step 2: Convert to fraction form
   72,223.50/105,660.50 = 105,660.50/x
3. Step 3: Cross multiply
   72,223.50x = 105,660.50 × 105,660.50
4. Step 4: Simplify right side
   72,223.50x = 11,164,141,260.25
5. Step 5: Solve for x
   x = 11,164,141,260.25/72,223.50
6. Step 6: Final answer
   x = 154,577.68