Finding the Third Proportional to 485,367 and 734,842.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,367 : 734,842.50 = 734,842.50 : x
2. Step 2: Convert to fraction form
   485,367/734,842.50 = 734,842.50/x
3. Step 3: Cross multiply
   485,367x = 734,842.50 × 734,842.50
4. Step 4: Simplify right side
   485,367x = 539,993,499,806.25
5. Step 5: Solve for x
   x = 539,993,499,806.25/485,367
6. Step 6: Final answer
   x = 1,112,546.79