Finding the Third Proportional to 79,710.50 and 119,140

Step by Step Solution

1. Step 1: Write the proportion equation
   79,710.50 : 119,140 = 119,140 : x
2. Step 2: Convert to fraction form
   79,710.50/119,140 = 119,140/x
3. Step 3: Cross multiply
   79,710.50x = 119,140 × 119,140
4. Step 4: Simplify right side
   79,710.50x = 14,194,339,600
5. Step 5: Solve for x
   x = 14,194,339,600/79,710.50
6. Step 6: Final answer
   x = 178,073.65