Finding the Third Proportional to 626,280 and 1,396,000

Step by Step Solution

1. Step 1: Write the proportion equation
   626,280 : 1,396,000 = 1,396,000 : x
2. Step 2: Convert to fraction form
   626,280/1,396,000 = 1,396,000/x
3. Step 3: Cross multiply
   626,280x = 1,396,000 × 1,396,000
4. Step 4: Simplify right side
   626,280x = 1,948,816,000,000
5. Step 5: Solve for x
   x = 1,948,816,000,000/626,280
6. Step 6: Final answer
   x = 3,111,732.77