Finding the Third Proportional to 611,746 and 1,317,228

Step by Step Solution

1. Step 1: Write the proportion equation
   611,746 : 1,317,228 = 1,317,228 : x
2. Step 2: Convert to fraction form
   611,746/1,317,228 = 1,317,228/x
3. Step 3: Cross multiply
   611,746x = 1,317,228 × 1,317,228
4. Step 4: Simplify right side
   611,746x = 1,735,089,603,984
5. Step 5: Solve for x
   x = 1,735,089,603,984/611,746
6. Step 6: Final answer
   x = 2,836,290.89