Finding the Third Proportional to 499,837 and 799,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   499,837 : 799,429.50 = 799,429.50 : x
2. Step 2: Convert to fraction form
   499,837/799,429.50 = 799,429.50/x
3. Step 3: Cross multiply
   499,837x = 799,429.50 × 799,429.50
4. Step 4: Simplify right side
   499,837x = 639,087,525,470.25
5. Step 5: Solve for x
   x = 639,087,525,470.25/499,837
6. Step 6: Final answer
   x = 1,278,591.87