Finding the Third Proportional to 505,863 and 1,058,490

Step by Step Solution

1. Step 1: Write the proportion equation
   505,863 : 1,058,490 = 1,058,490 : x
2. Step 2: Convert to fraction form
   505,863/1,058,490 = 1,058,490/x
3. Step 3: Cross multiply
   505,863x = 1,058,490 × 1,058,490
4. Step 4: Simplify right side
   505,863x = 1,120,401,080,100
5. Step 5: Solve for x
   x = 1,120,401,080,100/505,863
6. Step 6: Final answer
   x = 2,214,831.05