Finding the Third Proportional to 67,580 and 143,908

Step by Step Solution

1. Step 1: Write the proportion equation
   67,580 : 143,908 = 143,908 : x
2. Step 2: Convert to fraction form
   67,580/143,908 = 143,908/x
3. Step 3: Cross multiply
   67,580x = 143,908 × 143,908
4. Step 4: Simplify right side
   67,580x = 20,709,512,464
5. Step 5: Solve for x
   x = 20,709,512,464/67,580
6. Step 6: Final answer
   x = 306,444.40