Finding the Third Proportional to 70,245 and 165,816

Step by Step Solution

1. Step 1: Write the proportion equation
   70,245 : 165,816 = 165,816 : x
2. Step 2: Convert to fraction form
   70,245/165,816 = 165,816/x
3. Step 3: Cross multiply
   70,245x = 165,816 × 165,816
4. Step 4: Simplify right side
   70,245x = 27,494,945,856
5. Step 5: Solve for x
   x = 27,494,945,856/70,245
6. Step 6: Final answer
   x = 391,414.99