Finding the Third Proportional to 70,780 and 154,686

Step by Step Solution

1. Step 1: Write the proportion equation
   70,780 : 154,686 = 154,686 : x
2. Step 2: Convert to fraction form
   70,780/154,686 = 154,686/x
3. Step 3: Cross multiply
   70,780x = 154,686 × 154,686
4. Step 4: Simplify right side
   70,780x = 23,927,758,596
5. Step 5: Solve for x
   x = 23,927,758,596/70,780
6. Step 6: Final answer
   x = 338,058.19