Finding the Third Proportional to 70,293 and 142,512

Step by Step Solution

1. Step 1: Write the proportion equation
   70,293 : 142,512 = 142,512 : x
2. Step 2: Convert to fraction form
   70,293/142,512 = 142,512/x
3. Step 3: Cross multiply
   70,293x = 142,512 × 142,512
4. Step 4: Simplify right side
   70,293x = 20,309,670,144
5. Step 5: Solve for x
   x = 20,309,670,144/70,293
6. Step 6: Final answer
   x = 288,928.77