Finding the Third Proportional to 70,720 and 152,508

Step by Step Solution

1. Step 1: Write the proportion equation
   70,720 : 152,508 = 152,508 : x
2. Step 2: Convert to fraction form
   70,720/152,508 = 152,508/x
3. Step 3: Cross multiply
   70,720x = 152,508 × 152,508
4. Step 4: Simplify right side
   70,720x = 23,258,690,064
5. Step 5: Solve for x
   x = 23,258,690,064/70,720
6. Step 6: Final answer
   x = 328,884.19