Finding the Third Proportional to 869,580 and 1,143,495

Step by Step Solution

1. Step 1: Write the proportion equation
   869,580 : 1,143,495 = 1,143,495 : x
2. Step 2: Convert to fraction form
   869,580/1,143,495 = 1,143,495/x
3. Step 3: Cross multiply
   869,580x = 1,143,495 × 1,143,495
4. Step 4: Simplify right side
   869,580x = 1,307,580,815,025
5. Step 5: Solve for x
   x = 1,307,580,815,025/869,580
6. Step 6: Final answer
   x = 1,503,692.37