Finding the Third Proportional to 81,474 and 170,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,474 : 170,734.50 = 170,734.50 : x
2. Step 2: Convert to fraction form
   81,474/170,734.50 = 170,734.50/x
3. Step 3: Cross multiply
   81,474x = 170,734.50 × 170,734.50
4. Step 4: Simplify right side
   81,474x = 29,150,269,490.25
5. Step 5: Solve for x
   x = 29,150,269,490.25/81,474
6. Step 6: Final answer
   x = 357,786.16