Finding the Third Proportional to 3,408,939 and 7,459,209

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408,939 : 7,459,209 = 7,459,209 : x
2. Step 2: Convert to fraction form
   3,408,939/7,459,209 = 7,459,209/x
3. Step 3: Cross multiply
   3,408,939x = 7,459,209 × 7,459,209
4. Step 4: Simplify right side
   3,408,939x = 55,639,798,905,681
5. Step 5: Solve for x
   x = 55,639,798,905,681/3,408,939
6. Step 6: Final answer
   x = 16,321,734.98