Finding the Third Proportional to 70,406 and 146,638

Step by Step Solution

1. Step 1: Write the proportion equation
   70,406 : 146,638 = 146,638 : x
2. Step 2: Convert to fraction form
   70,406/146,638 = 146,638/x
3. Step 3: Cross multiply
   70,406x = 146,638 × 146,638
4. Step 4: Simplify right side
   70,406x = 21,502,703,044
5. Step 5: Solve for x
   x = 21,502,703,044/70,406
6. Step 6: Final answer
   x = 305,410.09