Finding the Third Proportional to 267,208 and 621,300

Step by Step Solution

1. Step 1: Write the proportion equation
   267,208 : 621,300 = 621,300 : x
2. Step 2: Convert to fraction form
   267,208/621,300 = 621,300/x
3. Step 3: Cross multiply
   267,208x = 621,300 × 621,300
4. Step 4: Simplify right side
   267,208x = 386,013,690,000
5. Step 5: Solve for x
   x = 386,013,690,000/267,208
6. Step 6: Final answer
   x = 1,444,618.76