Finding the Third Proportional to 506,398 and 1,109,420

Step by Step Solution

1. Step 1: Write the proportion equation
   506,398 : 1,109,420 = 1,109,420 : x
2. Step 2: Convert to fraction form
   506,398/1,109,420 = 1,109,420/x
3. Step 3: Cross multiply
   506,398x = 1,109,420 × 1,109,420
4. Step 4: Simplify right side
   506,398x = 1,230,812,736,400
5. Step 5: Solve for x
   x = 1,230,812,736,400/506,398
6. Step 6: Final answer
   x = 2,430,524.48