Finding the Third Proportional to 499,878 and 714,325.50

Step by Step Solution

1. Step 1: Write the proportion equation
   499,878 : 714,325.50 = 714,325.50 : x
2. Step 2: Convert to fraction form
   499,878/714,325.50 = 714,325.50/x
3. Step 3: Cross multiply
   499,878x = 714,325.50 × 714,325.50
4. Step 4: Simplify right side
   499,878x = 510,260,919,950.25
5. Step 5: Solve for x
   x = 510,260,919,950.25/499,878
6. Step 6: Final answer
   x = 1,020,770.91