Finding the Third Proportional to 70,648 and 154,420

Step by Step Solution

1. Step 1: Write the proportion equation
   70,648 : 154,420 = 154,420 : x
2. Step 2: Convert to fraction form
   70,648/154,420 = 154,420/x
3. Step 3: Cross multiply
   70,648x = 154,420 × 154,420
4. Step 4: Simplify right side
   70,648x = 23,845,536,400
5. Step 5: Solve for x
   x = 23,845,536,400/70,648
6. Step 6: Final answer
   x = 337,525.99