Finding the Third Proportional to 521,687 and 1,099,408

Step by Step Solution

1. Step 1: Write the proportion equation
   521,687 : 1,099,408 = 1,099,408 : x
2. Step 2: Convert to fraction form
   521,687/1,099,408 = 1,099,408/x
3. Step 3: Cross multiply
   521,687x = 1,099,408 × 1,099,408
4. Step 4: Simplify right side
   521,687x = 1,208,697,950,464
5. Step 5: Solve for x
   x = 1,208,697,950,464/521,687
6. Step 6: Final answer
   x = 2,316,902.57