Finding the Third Proportional to 70,440 and 144,120

Step by Step Solution

1. Step 1: Write the proportion equation
   70,440 : 144,120 = 144,120 : x
2. Step 2: Convert to fraction form
   70,440/144,120 = 144,120/x
3. Step 3: Cross multiply
   70,440x = 144,120 × 144,120
4. Step 4: Simplify right side
   70,440x = 20,770,574,400
5. Step 5: Solve for x
   x = 20,770,574,400/70,440
6. Step 6: Final answer
   x = 294,869.03