Finding the Third Proportional to 72,432.56 and 110,809.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,432.56 : 110,809.69 = 110,809.69 : x
2. Step 2: Convert to fraction form
   72,432.56/110,809.69 = 110,809.69/x
3. Step 3: Cross multiply
   72,432.56x = 110,809.69 × 110,809.69
4. Step 4: Simplify right side
   72,432.56x = 12,278,786,843.85
5. Step 5: Solve for x
   x = 12,278,786,843.85/72,432.56
6. Step 6: Final answer
   x = 169,520.26