Finding the Third Proportional to 1,012,840 and 1,603,823

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,840 : 1,603,823 = 1,603,823 : x
2. Step 2: Convert to fraction form
   1,012,840/1,603,823 = 1,603,823/x
3. Step 3: Cross multiply
   1,012,840x = 1,603,823 × 1,603,823
4. Step 4: Simplify right side
   1,012,840x = 2,572,248,215,329
5. Step 5: Solve for x
   x = 2,572,248,215,329/1,012,840
6. Step 6: Final answer
   x = 2,539,639.25