Finding the Third Proportional to 580,418 and 1,219,588

Step by Step Solution

1. Step 1: Write the proportion equation
   580,418 : 1,219,588 = 1,219,588 : x
2. Step 2: Convert to fraction form
   580,418/1,219,588 = 1,219,588/x
3. Step 3: Cross multiply
   580,418x = 1,219,588 × 1,219,588
4. Step 4: Simplify right side
   580,418x = 1,487,394,889,744
5. Step 5: Solve for x
   x = 1,487,394,889,744/580,418
6. Step 6: Final answer
   x = 2,562,627.09