Finding the Third Proportional to 111,575 and 169,979

Step by Step Solution

1. Step 1: Write the proportion equation
   111,575 : 169,979 = 169,979 : x
2. Step 2: Convert to fraction form
   111,575/169,979 = 169,979/x
3. Step 3: Cross multiply
   111,575x = 169,979 × 169,979
4. Step 4: Simplify right side
   111,575x = 28,892,860,441
5. Step 5: Solve for x
   x = 28,892,860,441/111,575
6. Step 6: Final answer
   x = 258,954.61