Finding the Third Proportional to 137,280 and 300,804

Step by Step Solution

1. Step 1: Write the proportion equation
   137,280 : 300,804 = 300,804 : x
2. Step 2: Convert to fraction form
   137,280/300,804 = 300,804/x
3. Step 3: Cross multiply
   137,280x = 300,804 × 300,804
4. Step 4: Simplify right side
   137,280x = 90,483,046,416
5. Step 5: Solve for x
   x = 90,483,046,416/137,280
6. Step 6: Final answer
   x = 659,113.10