Finding the Third Proportional to 67,196 and 134,392

Step by Step Solution

1. Step 1: Write the proportion equation
   67,196 : 134,392 = 134,392 : x
2. Step 2: Convert to fraction form
   67,196/134,392 = 134,392/x
3. Step 3: Cross multiply
   67,196x = 134,392 × 134,392
4. Step 4: Simplify right side
   67,196x = 18,061,209,664
5. Step 5: Solve for x
   x = 18,061,209,664/67,196
6. Step 6: Final answer
   x = 268,784