Finding the Third Proportional to 555,339 and 1,189,422

Step by Step Solution

1. Step 1: Write the proportion equation
   555,339 : 1,189,422 = 1,189,422 : x
2. Step 2: Convert to fraction form
   555,339/1,189,422 = 1,189,422/x
3. Step 3: Cross multiply
   555,339x = 1,189,422 × 1,189,422
4. Step 4: Simplify right side
   555,339x = 1,414,724,694,084
5. Step 5: Solve for x
   x = 1,414,724,694,084/555,339
6. Step 6: Final answer
   x = 2,547,497.46