Finding the Third Proportional to 139,653 and 301,446

Step by Step Solution

1. Step 1: Write the proportion equation
   139,653 : 301,446 = 301,446 : x
2. Step 2: Convert to fraction form
   139,653/301,446 = 301,446/x
3. Step 3: Cross multiply
   139,653x = 301,446 × 301,446
4. Step 4: Simplify right side
   139,653x = 90,869,690,916
5. Step 5: Solve for x
   x = 90,869,690,916/139,653
6. Step 6: Final answer
   x = 650,681.98