Finding the Third Proportional to 139,542 and 301,404

Step by Step Solution

1. Step 1: Write the proportion equation
   139,542 : 301,404 = 301,404 : x
2. Step 2: Convert to fraction form
   139,542/301,404 = 301,404/x
3. Step 3: Cross multiply
   139,542x = 301,404 × 301,404
4. Step 4: Simplify right side
   139,542x = 90,844,371,216
5. Step 5: Solve for x
   x = 90,844,371,216/139,542
6. Step 6: Final answer
   x = 651,018.13