Finding the Third Proportional to 1,328,231 and 1,992,635

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,231 : 1,992,635 = 1,992,635 : x
2. Step 2: Convert to fraction form
   1,328,231/1,992,635 = 1,992,635/x
3. Step 3: Cross multiply
   1,328,231x = 1,992,635 × 1,992,635
4. Step 4: Simplify right side
   1,328,231x = 3,970,594,243,225
5. Step 5: Solve for x
   x = 3,970,594,243,225/1,328,231
6. Step 6: Final answer
   x = 2,989,385.31