Finding the Third Proportional to 79,279.50 and 122,780.25

Step by Step Solution

1. Step 1: Write the proportion equation
   79,279.50 : 122,780.25 = 122,780.25 : x
2. Step 2: Convert to fraction form
   79,279.50/122,780.25 = 122,780.25/x
3. Step 3: Cross multiply
   79,279.50x = 122,780.25 × 122,780.25
4. Step 4: Simplify right side
   79,279.50x = 15,074,989,790.06
5. Step 5: Solve for x
   x = 15,074,989,790.06/79,279.50
6. Step 6: Final answer
   x = 190,149.91