Finding the Third Proportional to 81,477 and 170,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,477 : 170,401.50 = 170,401.50 : x
2. Step 2: Convert to fraction form
   81,477/170,401.50 = 170,401.50/x
3. Step 3: Cross multiply
   81,477x = 170,401.50 × 170,401.50
4. Step 4: Simplify right side
   81,477x = 29,036,671,202.25
5. Step 5: Solve for x
   x = 29,036,671,202.25/81,477
6. Step 6: Final answer
   x = 356,378.75