Finding the Third Proportional to 70,840 and 154,142

Step by Step Solution

1. Step 1: Write the proportion equation
   70,840 : 154,142 = 154,142 : x
2. Step 2: Convert to fraction form
   70,840/154,142 = 154,142/x
3. Step 3: Cross multiply
   70,840x = 154,142 × 154,142
4. Step 4: Simplify right side
   70,840x = 23,759,756,164
5. Step 5: Solve for x
   x = 23,759,756,164/70,840
6. Step 6: Final answer
   x = 335,400.28