Finding the Third Proportional to 81,468 and 170,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,468 : 170,383.50 = 170,383.50 : x
2. Step 2: Convert to fraction form
   81,468/170,383.50 = 170,383.50/x
3. Step 3: Cross multiply
   81,468x = 170,383.50 × 170,383.50
4. Step 4: Simplify right side
   81,468x = 29,030,537,072.25
5. Step 5: Solve for x
   x = 29,030,537,072.25/81,468
6. Step 6: Final answer
   x = 356,342.82