Finding the Third Proportional to 67,400 and 140,308

Step by Step Solution

1. Step 1: Write the proportion equation
   67,400 : 140,308 = 140,308 : x
2. Step 2: Convert to fraction form
   67,400/140,308 = 140,308/x
3. Step 3: Cross multiply
   67,400x = 140,308 × 140,308
4. Step 4: Simplify right side
   67,400x = 19,686,334,864
5. Step 5: Solve for x
   x = 19,686,334,864/67,400
6. Step 6: Final answer
   x = 292,082.12