Finding the Third Proportional to 70,680.50 and 154,729

Step by Step Solution

1. Step 1: Write the proportion equation
   70,680.50 : 154,729 = 154,729 : x
2. Step 2: Convert to fraction form
   70,680.50/154,729 = 154,729/x
3. Step 3: Cross multiply
   70,680.50x = 154,729 × 154,729
4. Step 4: Simplify right side
   70,680.50x = 23,941,063,441
5. Step 5: Solve for x
   x = 23,941,063,441/70,680.50
6. Step 6: Final answer
   x = 338,722.33