Finding the Third Proportional to 622,217 and 1,317,334

Step by Step Solution

1. Step 1: Write the proportion equation
   622,217 : 1,317,334 = 1,317,334 : x
2. Step 2: Convert to fraction form
   622,217/1,317,334 = 1,317,334/x
3. Step 3: Cross multiply
   622,217x = 1,317,334 × 1,317,334
4. Step 4: Simplify right side
   622,217x = 1,735,368,867,556
5. Step 5: Solve for x
   x = 1,735,368,867,556/622,217
6. Step 6: Final answer
   x = 2,789,009.09