Finding the Third Proportional to 3,690,408 and 5,194,638

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690,408 : 5,194,638 = 5,194,638 : x
2. Step 2: Convert to fraction form
   3,690,408/5,194,638 = 5,194,638/x
3. Step 3: Cross multiply
   3,690,408x = 5,194,638 × 5,194,638
4. Step 4: Simplify right side
   3,690,408x = 26,984,263,951,044
5. Step 5: Solve for x
   x = 26,984,263,951,044/3,690,408
6. Step 6: Final answer
   x = 7,312,000.18