Finding the Third Proportional to 70,290 and 154,404

Step by Step Solution

1. Step 1: Write the proportion equation
   70,290 : 154,404 = 154,404 : x
2. Step 2: Convert to fraction form
   70,290/154,404 = 154,404/x
3. Step 3: Cross multiply
   70,290x = 154,404 × 154,404
4. Step 4: Simplify right side
   70,290x = 23,840,595,216
5. Step 5: Solve for x
   x = 23,840,595,216/70,290
6. Step 6: Final answer
   x = 339,174.78