Finding the Third Proportional to 137,268 and 300,780

Step by Step Solution

1. Step 1: Write the proportion equation
   137,268 : 300,780 = 300,780 : x
2. Step 2: Convert to fraction form
   137,268/300,780 = 300,780/x
3. Step 3: Cross multiply
   137,268x = 300,780 × 300,780
4. Step 4: Simplify right side
   137,268x = 90,468,608,400
5. Step 5: Solve for x
   x = 90,468,608,400/137,268
6. Step 6: Final answer
   x = 659,065.54