Finding the Third Proportional to 745,608.25 and 1,140,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   745,608.25 : 1,140,078.50 = 1,140,078.50 : x
2. Step 2: Convert to fraction form
   745,608.25/1,140,078.50 = 1,140,078.50/x
3. Step 3: Cross multiply
   745,608.25x = 1,140,078.50 × 1,140,078.50
4. Step 4: Simplify right side
   745,608.25x = 1,299,778,986,162.25
5. Step 5: Solve for x
   x = 1,299,778,986,162.25/745,608.25
6. Step 6: Final answer
   x = 1,743,246.52