Finding the Third Proportional to 70,720 and 154,064

Step by Step Solution

1. Step 1: Write the proportion equation
   70,720 : 154,064 = 154,064 : x
2. Step 2: Convert to fraction form
   70,720/154,064 = 154,064/x
3. Step 3: Cross multiply
   70,720x = 154,064 × 154,064
4. Step 4: Simplify right side
   70,720x = 23,735,716,096
5. Step 5: Solve for x
   x = 23,735,716,096/70,720
6. Step 6: Final answer
   x = 335,629.47