Finding the Third Proportional to 139,156 and 304,568

Step by Step Solution

1. Step 1: Write the proportion equation
   139,156 : 304,568 = 304,568 : x
2. Step 2: Convert to fraction form
   139,156/304,568 = 304,568/x
3. Step 3: Cross multiply
   139,156x = 304,568 × 304,568
4. Step 4: Simplify right side
   139,156x = 92,761,666,624
5. Step 5: Solve for x
   x = 92,761,666,624/139,156
6. Step 6: Final answer
   x = 666,601.99