Finding the Third Proportional to 489,644 and 1,038,072

Step by Step Solution

1. Step 1: Write the proportion equation
   489,644 : 1,038,072 = 1,038,072 : x
2. Step 2: Convert to fraction form
   489,644/1,038,072 = 1,038,072/x
3. Step 3: Cross multiply
   489,644x = 1,038,072 × 1,038,072
4. Step 4: Simplify right side
   489,644x = 1,077,593,477,184
5. Step 5: Solve for x
   x = 1,077,593,477,184/489,644
6. Step 6: Final answer
   x = 2,200,769.29