Finding the Third Proportional to 139,692 and 301,530

Step by Step Solution

1. Step 1: Write the proportion equation
   139,692 : 301,530 = 301,530 : x
2. Step 2: Convert to fraction form
   139,692/301,530 = 301,530/x
3. Step 3: Cross multiply
   139,692x = 301,530 × 301,530
4. Step 4: Simplify right side
   139,692x = 90,920,340,900
5. Step 5: Solve for x
   x = 90,920,340,900/139,692
6. Step 6: Final answer
   x = 650,862.90