Finding the Third Proportional to 564,558 and 1,210,980

Step by Step Solution

1. Step 1: Write the proportion equation
   564,558 : 1,210,980 = 1,210,980 : x
2. Step 2: Convert to fraction form
   564,558/1,210,980 = 1,210,980/x
3. Step 3: Cross multiply
   564,558x = 1,210,980 × 1,210,980
4. Step 4: Simplify right side
   564,558x = 1,466,472,560,400
5. Step 5: Solve for x
   x = 1,466,472,560,400/564,558
6. Step 6: Final answer
   x = 2,597,558.73