Finding the Third Proportional to 70,086 and 108,821

Step by Step Solution

1. Step 1: Write the proportion equation
   70,086 : 108,821 = 108,821 : x
2. Step 2: Convert to fraction form
   70,086/108,821 = 108,821/x
3. Step 3: Cross multiply
   70,086x = 108,821 × 108,821
4. Step 4: Simplify right side
   70,086x = 11,842,010,041
5. Step 5: Solve for x
   x = 11,842,010,041/70,086
6. Step 6: Final answer
   x = 168,963.99