Finding the Third Proportional to 494,823.50 and 818,871

Step by Step Solution

1. Step 1: Write the proportion equation
   494,823.50 : 818,871 = 818,871 : x
2. Step 2: Convert to fraction form
   494,823.50/818,871 = 818,871/x
3. Step 3: Cross multiply
   494,823.50x = 818,871 × 818,871
4. Step 4: Simplify right side
   494,823.50x = 670,549,714,641
5. Step 5: Solve for x
   x = 670,549,714,641/494,823.50
6. Step 6: Final answer
   x = 1,355,129.08