Finding the Third Proportional to 70,609 and 155,434

Step by Step Solution

1. Step 1: Write the proportion equation
   70,609 : 155,434 = 155,434 : x
2. Step 2: Convert to fraction form
   70,609/155,434 = 155,434/x
3. Step 3: Cross multiply
   70,609x = 155,434 × 155,434
4. Step 4: Simplify right side
   70,609x = 24,159,728,356
5. Step 5: Solve for x
   x = 24,159,728,356/70,609
6. Step 6: Final answer
   x = 342,162.17