Finding the Third Proportional to 372,714 and 818,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   372,714 : 818,647.50 = 818,647.50 : x
2. Step 2: Convert to fraction form
   372,714/818,647.50 = 818,647.50/x
3. Step 3: Cross multiply
   372,714x = 818,647.50 × 818,647.50
4. Step 4: Simplify right side
   372,714x = 670,183,729,256.25
5. Step 5: Solve for x
   x = 670,183,729,256.25/372,714
6. Step 6: Final answer
   x = 1,798,117.94