Finding the Third Proportional to 268,212 and 579,981.75

Step by Step Solution

1. Step 1: Write the proportion equation
   268,212 : 579,981.75 = 579,981.75 : x
2. Step 2: Convert to fraction form
   268,212/579,981.75 = 579,981.75/x
3. Step 3: Cross multiply
   268,212x = 579,981.75 × 579,981.75
4. Step 4: Simplify right side
   268,212x = 336,378,830,333.06
5. Step 5: Solve for x
   x = 336,378,830,333.06/268,212
6. Step 6: Final answer
   x = 1,254,152.80