Finding the Third Proportional to 80,425.50 and 105,759

Step by Step Solution

1. Step 1: Write the proportion equation
   80,425.50 : 105,759 = 105,759 : x
2. Step 2: Convert to fraction form
   80,425.50/105,759 = 105,759/x
3. Step 3: Cross multiply
   80,425.50x = 105,759 × 105,759
4. Step 4: Simplify right side
   80,425.50x = 11,184,966,081
5. Step 5: Solve for x
   x = 11,184,966,081/80,425.50
6. Step 6: Final answer
   x = 139,072.38