Finding the Third Proportional to 489,636 and 1,038,078

Step by Step Solution

1. Step 1: Write the proportion equation
   489,636 : 1,038,078 = 1,038,078 : x
2. Step 2: Convert to fraction form
   489,636/1,038,078 = 1,038,078/x
3. Step 3: Cross multiply
   489,636x = 1,038,078 × 1,038,078
4. Step 4: Simplify right side
   489,636x = 1,077,605,934,084
5. Step 5: Solve for x
   x = 1,077,605,934,084/489,636
6. Step 6: Final answer
   x = 2,200,830.69