Finding the Third Proportional to 79,807.50 and 170,280

Step by Step Solution

1. Step 1: Write the proportion equation
   79,807.50 : 170,280 = 170,280 : x
2. Step 2: Convert to fraction form
   79,807.50/170,280 = 170,280/x
3. Step 3: Cross multiply
   79,807.50x = 170,280 × 170,280
4. Step 4: Simplify right side
   79,807.50x = 28,995,278,400
5. Step 5: Solve for x
   x = 28,995,278,400/79,807.50
6. Step 6: Final answer
   x = 363,315.21