Finding the Third Proportional to 291,442 and 596,978

Step by Step Solution

1. Step 1: Write the proportion equation
   291,442 : 596,978 = 596,978 : x
2. Step 2: Convert to fraction form
   291,442/596,978 = 596,978/x
3. Step 3: Cross multiply
   291,442x = 596,978 × 596,978
4. Step 4: Simplify right side
   291,442x = 356,382,732,484
5. Step 5: Solve for x
   x = 356,382,732,484/291,442
6. Step 6: Final answer
   x = 1,222,825.58