Finding the Third Proportional to 489,674 and 1,038,136

Step by Step Solution

1. Step 1: Write the proportion equation
   489,674 : 1,038,136 = 1,038,136 : x
2. Step 2: Convert to fraction form
   489,674/1,038,136 = 1,038,136/x
3. Step 3: Cross multiply
   489,674x = 1,038,136 × 1,038,136
4. Step 4: Simplify right side
   489,674x = 1,077,726,354,496
5. Step 5: Solve for x
   x = 1,077,726,354,496/489,674
6. Step 6: Final answer
   x = 2,200,905.82