Finding the Third Proportional to 864,468 and 1,245,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   864,468 : 1,245,280.50 = 1,245,280.50 : x
2. Step 2: Convert to fraction form
   864,468/1,245,280.50 = 1,245,280.50/x
3. Step 3: Cross multiply
   864,468x = 1,245,280.50 × 1,245,280.50
4. Step 4: Simplify right side
   864,468x = 1,550,723,523,680.25
5. Step 5: Solve for x
   x = 1,550,723,523,680.25/864,468
6. Step 6: Final answer
   x = 1,793,847.23