Finding the Third Proportional to 997,742 and 2,188,660

Step by Step Solution

1. Step 1: Write the proportion equation
   997,742 : 2,188,660 = 2,188,660 : x
2. Step 2: Convert to fraction form
   997,742/2,188,660 = 2,188,660/x
3. Step 3: Cross multiply
   997,742x = 2,188,660 × 2,188,660
4. Step 4: Simplify right side
   997,742x = 4,790,232,595,600
5. Step 5: Solve for x
   x = 4,790,232,595,600/997,742
6. Step 6: Final answer
   x = 4,801,073.42