Finding the Third Proportional to 355,109 and 762,922

Step by Step Solution

1. Step 1: Write the proportion equation
   355,109 : 762,922 = 762,922 : x
2. Step 2: Convert to fraction form
   355,109/762,922 = 762,922/x
3. Step 3: Cross multiply
   355,109x = 762,922 × 762,922
4. Step 4: Simplify right side
   355,109x = 582,049,978,084
5. Step 5: Solve for x
   x = 582,049,978,084/355,109
6. Step 6: Final answer
   x = 1,639,074.14