Finding the Third Proportional to 820,722 and 1,260,730

Step by Step Solution

1. Step 1: Write the proportion equation
   820,722 : 1,260,730 = 1,260,730 : x
2. Step 2: Convert to fraction form
   820,722/1,260,730 = 1,260,730/x
3. Step 3: Cross multiply
   820,722x = 1,260,730 × 1,260,730
4. Step 4: Simplify right side
   820,722x = 1,589,440,132,900
5. Step 5: Solve for x
   x = 1,589,440,132,900/820,722
6. Step 6: Final answer
   x = 1,936,636.44