Finding the Third Proportional to 1,905,408 and 4,087,107

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905,408 : 4,087,107 = 4,087,107 : x
2. Step 2: Convert to fraction form
   1,905,408/4,087,107 = 4,087,107/x
3. Step 3: Cross multiply
   1,905,408x = 4,087,107 × 4,087,107
4. Step 4: Simplify right side
   1,905,408x = 16,704,443,629,449
5. Step 5: Solve for x
   x = 16,704,443,629,449/1,905,408
6. Step 6: Final answer
   x = 8,766,859.19