Finding the Third Proportional to 569,580 and 1,212,780

Step by Step Solution

1. Step 1: Write the proportion equation
   569,580 : 1,212,780 = 1,212,780 : x
2. Step 2: Convert to fraction form
   569,580/1,212,780 = 1,212,780/x
3. Step 3: Cross multiply
   569,580x = 1,212,780 × 1,212,780
4. Step 4: Simplify right side
   569,580x = 1,470,835,328,400
5. Step 5: Solve for x
   x = 1,470,835,328,400/569,580
6. Step 6: Final answer
   x = 2,582,315.62