Finding the Third Proportional to 79,786.75 and 118,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,786.75 : 118,139.50 = 118,139.50 : x
2. Step 2: Convert to fraction form
   79,786.75/118,139.50 = 118,139.50/x
3. Step 3: Cross multiply
   79,786.75x = 118,139.50 × 118,139.50
4. Step 4: Simplify right side
   79,786.75x = 13,956,941,460.25
5. Step 5: Solve for x
   x = 13,956,941,460.25/79,786.75
6. Step 6: Final answer
   x = 174,928.06