Finding the Third Proportional to 139,242 and 294,360

Step by Step Solution

1. Step 1: Write the proportion equation
   139,242 : 294,360 = 294,360 : x
2. Step 2: Convert to fraction form
   139,242/294,360 = 294,360/x
3. Step 3: Cross multiply
   139,242x = 294,360 × 294,360
4. Step 4: Simplify right side
   139,242x = 86,647,809,600
5. Step 5: Solve for x
   x = 86,647,809,600/139,242
6. Step 6: Final answer
   x = 622,282.14