Finding the Third Proportional to 79,828 and 122,738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,828 : 122,738.50 = 122,738.50 : x
2. Step 2: Convert to fraction form
   79,828/122,738.50 = 122,738.50/x
3. Step 3: Cross multiply
   79,828x = 122,738.50 × 122,738.50
4. Step 4: Simplify right side
   79,828x = 15,064,739,382.25
5. Step 5: Solve for x
   x = 15,064,739,382.25/79,828
6. Step 6: Final answer
   x = 188,714.98