Finding the Third Proportional to 139,654 and 303,607

Step by Step Solution

1. Step 1: Write the proportion equation
   139,654 : 303,607 = 303,607 : x
2. Step 2: Convert to fraction form
   139,654/303,607 = 303,607/x
3. Step 3: Cross multiply
   139,654x = 303,607 × 303,607
4. Step 4: Simplify right side
   139,654x = 92,177,210,449
5. Step 5: Solve for x
   x = 92,177,210,449/139,654
6. Step 6: Final answer
   x = 660,039.89