Finding the Third Proportional to 139,130 and 300,004

Step by Step Solution

1. Step 1: Write the proportion equation
   139,130 : 300,004 = 300,004 : x
2. Step 2: Convert to fraction form
   139,130/300,004 = 300,004/x
3. Step 3: Cross multiply
   139,130x = 300,004 × 300,004
4. Step 4: Simplify right side
   139,130x = 90,002,400,016
5. Step 5: Solve for x
   x = 90,002,400,016/139,130
6. Step 6: Final answer
   x = 646,894.27