Finding the Third Proportional to 518,444.50 and 793,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,444.50 : 793,453.50 = 793,453.50 : x
2. Step 2: Convert to fraction form
   518,444.50/793,453.50 = 793,453.50/x
3. Step 3: Cross multiply
   518,444.50x = 793,453.50 × 793,453.50
4. Step 4: Simplify right side
   518,444.50x = 629,568,456,662.25
5. Step 5: Solve for x
   x = 629,568,456,662.25/518,444.50
6. Step 6: Final answer
   x = 1,214,341.09