Finding the Third Proportional to 138,260 and 303,300

Step by Step Solution

1. Step 1: Write the proportion equation
   138,260 : 303,300 = 303,300 : x
2. Step 2: Convert to fraction form
   138,260/303,300 = 303,300/x
3. Step 3: Cross multiply
   138,260x = 303,300 × 303,300
4. Step 4: Simplify right side
   138,260x = 91,990,890,000
5. Step 5: Solve for x
   x = 91,990,890,000/138,260
6. Step 6: Final answer
   x = 665,347.10