Finding the Third Proportional to 70,436 and 142,024

Step by Step Solution

1. Step 1: Write the proportion equation
   70,436 : 142,024 = 142,024 : x
2. Step 2: Convert to fraction form
   70,436/142,024 = 142,024/x
3. Step 3: Cross multiply
   70,436x = 142,024 × 142,024
4. Step 4: Simplify right side
   70,436x = 20,170,816,576
5. Step 5: Solve for x
   x = 20,170,816,576/70,436
6. Step 6: Final answer
   x = 286,370.84