Finding the Third Proportional to 558,666 and 1,205,916

Step by Step Solution

1. Step 1: Write the proportion equation
   558,666 : 1,205,916 = 1,205,916 : x
2. Step 2: Convert to fraction form
   558,666/1,205,916 = 1,205,916/x
3. Step 3: Cross multiply
   558,666x = 1,205,916 × 1,205,916
4. Step 4: Simplify right side
   558,666x = 1,454,233,399,056
5. Step 5: Solve for x
   x = 1,454,233,399,056/558,666
6. Step 6: Final answer
   x = 2,603,046.18