Finding the Third Proportional to 349,561.50 and 744,879

Step by Step Solution

1. Step 1: Write the proportion equation
   349,561.50 : 744,879 = 744,879 : x
2. Step 2: Convert to fraction form
   349,561.50/744,879 = 744,879/x
3. Step 3: Cross multiply
   349,561.50x = 744,879 × 744,879
4. Step 4: Simplify right side
   349,561.50x = 554,844,724,641
5. Step 5: Solve for x
   x = 554,844,724,641/349,561.50
6. Step 6: Final answer
   x = 1,587,259.25