Finding the Third Proportional to 580,689 and 1,253,223

Step by Step Solution

1. Step 1: Write the proportion equation
   580,689 : 1,253,223 = 1,253,223 : x
2. Step 2: Convert to fraction form
   580,689/1,253,223 = 1,253,223/x
3. Step 3: Cross multiply
   580,689x = 1,253,223 × 1,253,223
4. Step 4: Simplify right side
   580,689x = 1,570,567,887,729
5. Step 5: Solve for x
   x = 1,570,567,887,729/580,689
6. Step 6: Final answer
   x = 2,704,662.72