Finding the Third Proportional to 70,724 and 154,570

Step by Step Solution

1. Step 1: Write the proportion equation
   70,724 : 154,570 = 154,570 : x
2. Step 2: Convert to fraction form
   70,724/154,570 = 154,570/x
3. Step 3: Cross multiply
   70,724x = 154,570 × 154,570
4. Step 4: Simplify right side
   70,724x = 23,891,884,900
5. Step 5: Solve for x
   x = 23,891,884,900/70,724
6. Step 6: Final answer
   x = 337,818.63