Finding the Third Proportional to 505,830 and 1,058,427

Step by Step Solution

1. Step 1: Write the proportion equation
   505,830 : 1,058,427 = 1,058,427 : x
2. Step 2: Convert to fraction form
   505,830/1,058,427 = 1,058,427/x
3. Step 3: Cross multiply
   505,830x = 1,058,427 × 1,058,427
4. Step 4: Simplify right side
   505,830x = 1,120,267,714,329
5. Step 5: Solve for x
   x = 1,120,267,714,329/505,830
6. Step 6: Final answer
   x = 2,214,711.89