Finding the Third Proportional to 898,838 and 1,264,279

Step by Step Solution

1. Step 1: Write the proportion equation
   898,838 : 1,264,279 = 1,264,279 : x
2. Step 2: Convert to fraction form
   898,838/1,264,279 = 1,264,279/x
3. Step 3: Cross multiply
   898,838x = 1,264,279 × 1,264,279
4. Step 4: Simplify right side
   898,838x = 1,598,401,389,841
5. Step 5: Solve for x
   x = 1,598,401,389,841/898,838
6. Step 6: Final answer
   x = 1,778,297.52