Finding the Third Proportional to 79,979.50 and 120,174

Step by Step Solution

1. Step 1: Write the proportion equation
   79,979.50 : 120,174 = 120,174 : x
2. Step 2: Convert to fraction form
   79,979.50/120,174 = 120,174/x
3. Step 3: Cross multiply
   79,979.50x = 120,174 × 120,174
4. Step 4: Simplify right side
   79,979.50x = 14,441,790,276
5. Step 5: Solve for x
   x = 14,441,790,276/79,979.50
6. Step 6: Final answer
   x = 180,568.65