Finding the Third Proportional to 509,228 and 1,116,386

Step by Step Solution

1. Step 1: Write the proportion equation
   509,228 : 1,116,386 = 1,116,386 : x
2. Step 2: Convert to fraction form
   509,228/1,116,386 = 1,116,386/x
3. Step 3: Cross multiply
   509,228x = 1,116,386 × 1,116,386
4. Step 4: Simplify right side
   509,228x = 1,246,317,700,996
5. Step 5: Solve for x
   x = 1,246,317,700,996/509,228
6. Step 6: Final answer
   x = 2,447,464.99