Finding the Third Proportional to 1,143,072 and 2,489,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143,072 : 2,489,328 = 2,489,328 : x
2. Step 2: Convert to fraction form
   1,143,072/2,489,328 = 2,489,328/x
3. Step 3: Cross multiply
   1,143,072x = 2,489,328 × 2,489,328
4. Step 4: Simplify right side
   1,143,072x = 6,196,753,891,584
5. Step 5: Solve for x
   x = 6,196,753,891,584/1,143,072
6. Step 6: Final answer
   x = 5,421,140.48