Finding the Third Proportional to 121,018 and 325,144

Step by Step Solution

1. Step 1: Write the proportion equation
   121,018 : 325,144 = 325,144 : x
2. Step 2: Convert to fraction form
   121,018/325,144 = 325,144/x
3. Step 3: Cross multiply
   121,018x = 325,144 × 325,144
4. Step 4: Simplify right side
   121,018x = 105,718,620,736
5. Step 5: Solve for x
   x = 105,718,620,736/121,018
6. Step 6: Final answer
   x = 873,577.66