Finding the Third Proportional to 521,684 and 1,099,399

Step by Step Solution

1. Step 1: Write the proportion equation
   521,684 : 1,099,399 = 1,099,399 : x
2. Step 2: Convert to fraction form
   521,684/1,099,399 = 1,099,399/x
3. Step 3: Cross multiply
   521,684x = 1,099,399 × 1,099,399
4. Step 4: Simplify right side
   521,684x = 1,208,678,161,201
5. Step 5: Solve for x
   x = 1,208,678,161,201/521,684
6. Step 6: Final answer
   x = 2,316,877.96