Finding the Third Proportional to 72,976.50 and 109,986.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,976.50 : 109,986.75 = 109,986.75 : x
2. Step 2: Convert to fraction form
   72,976.50/109,986.75 = 109,986.75/x
3. Step 3: Cross multiply
   72,976.50x = 109,986.75 × 109,986.75
4. Step 4: Simplify right side
   72,976.50x = 12,097,085,175.56
5. Step 5: Solve for x
   x = 12,097,085,175.56/72,976.50
6. Step 6: Final answer
   x = 165,766.86