Finding the Third Proportional to 564,810 and 1,216,404

Step by Step Solution

1. Step 1: Write the proportion equation
   564,810 : 1,216,404 = 1,216,404 : x
2. Step 2: Convert to fraction form
   564,810/1,216,404 = 1,216,404/x
3. Step 3: Cross multiply
   564,810x = 1,216,404 × 1,216,404
4. Step 4: Simplify right side
   564,810x = 1,479,638,691,216
5. Step 5: Solve for x
   x = 1,479,638,691,216/564,810
6. Step 6: Final answer
   x = 2,619,710.51