Finding the Third Proportional to 166,420.50 and 270,384

Step by Step Solution

1. Step 1: Write the proportion equation
   166,420.50 : 270,384 = 270,384 : x
2. Step 2: Convert to fraction form
   166,420.50/270,384 = 270,384/x
3. Step 3: Cross multiply
   166,420.50x = 270,384 × 270,384
4. Step 4: Simplify right side
   166,420.50x = 73,107,507,456
5. Step 5: Solve for x
   x = 73,107,507,456/166,420.50
6. Step 6: Final answer
   x = 439,293.88