Finding the Third Proportional to 521,689 and 1,099,415

Step by Step Solution

1. Step 1: Write the proportion equation
   521,689 : 1,099,415 = 1,099,415 : x
2. Step 2: Convert to fraction form
   521,689/1,099,415 = 1,099,415/x
3. Step 3: Cross multiply
   521,689x = 1,099,415 × 1,099,415
4. Step 4: Simplify right side
   521,689x = 1,208,713,342,225
5. Step 5: Solve for x
   x = 1,208,713,342,225/521,689
6. Step 6: Final answer
   x = 2,316,923.19