Finding the Third Proportional to 78,886 and 169,800

Step by Step Solution

1. Step 1: Write the proportion equation
   78,886 : 169,800 = 169,800 : x
2. Step 2: Convert to fraction form
   78,886/169,800 = 169,800/x
3. Step 3: Cross multiply
   78,886x = 169,800 × 169,800
4. Step 4: Simplify right side
   78,886x = 28,832,040,000
5. Step 5: Solve for x
   x = 28,832,040,000/78,886
6. Step 6: Final answer
   x = 365,489.95