Finding the Third Proportional to 70,424 and 154,672

Step by Step Solution

1. Step 1: Write the proportion equation
   70,424 : 154,672 = 154,672 : x
2. Step 2: Convert to fraction form
   70,424/154,672 = 154,672/x
3. Step 3: Cross multiply
   70,424x = 154,672 × 154,672
4. Step 4: Simplify right side
   70,424x = 23,923,427,584
5. Step 5: Solve for x
   x = 23,923,427,584/70,424
6. Step 6: Final answer
   x = 339,705.61