Finding the Third Proportional to 139,641 and 301,422

Step by Step Solution

1. Step 1: Write the proportion equation
   139,641 : 301,422 = 301,422 : x
2. Step 2: Convert to fraction form
   139,641/301,422 = 301,422/x
3. Step 3: Cross multiply
   139,641x = 301,422 × 301,422
4. Step 4: Simplify right side
   139,641x = 90,855,222,084
5. Step 5: Solve for x
   x = 90,855,222,084/139,641
6. Step 6: Final answer
   x = 650,634.28