Finding the Third Proportional to 1,340,236 and 2,890,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,236 : 2,890,408 = 2,890,408 : x
2. Step 2: Convert to fraction form
   1,340,236/2,890,408 = 2,890,408/x
3. Step 3: Cross multiply
   1,340,236x = 2,890,408 × 2,890,408
4. Step 4: Simplify right side
   1,340,236x = 8,354,458,406,464
5. Step 5: Solve for x
   x = 8,354,458,406,464/1,340,236
6. Step 6: Final answer
   x = 6,233,572.60