Finding the Third Proportional to 997,790 and 2,188,736

Step by Step Solution

1. Step 1: Write the proportion equation
   997,790 : 2,188,736 = 2,188,736 : x
2. Step 2: Convert to fraction form
   997,790/2,188,736 = 2,188,736/x
3. Step 3: Cross multiply
   997,790x = 2,188,736 × 2,188,736
4. Step 4: Simplify right side
   997,790x = 4,790,565,277,696
5. Step 5: Solve for x
   x = 4,790,565,277,696/997,790
6. Step 6: Final answer
   x = 4,801,175.88