Finding the Third Proportional to 144,826 and 214,981

Step by Step Solution

1. Step 1: Write the proportion equation
   144,826 : 214,981 = 214,981 : x
2. Step 2: Convert to fraction form
   144,826/214,981 = 214,981/x
3. Step 3: Cross multiply
   144,826x = 214,981 × 214,981
4. Step 4: Simplify right side
   144,826x = 46,216,830,361
5. Step 5: Solve for x
   x = 46,216,830,361/144,826
6. Step 6: Final answer
   x = 319,119.70