Finding the Third Proportional to 728,393.50 and 1,142,636.25

Step by Step Solution

1. Step 1: Write the proportion equation
   728,393.50 : 1,142,636.25 = 1,142,636.25 : x
2. Step 2: Convert to fraction form
   728,393.50/1,142,636.25 = 1,142,636.25/x
3. Step 3: Cross multiply
   728,393.50x = 1,142,636.25 × 1,142,636.25
4. Step 4: Simplify right side
   728,393.50x = 1,305,617,599,814.06
5. Step 5: Solve for x
   x = 1,305,617,599,814.06/728,393.50
6. Step 6: Final answer
   x = 1,792,461.90