Finding the Third Proportional to 489,305 and 756,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,305 : 756,229.50 = 756,229.50 : x
2. Step 2: Convert to fraction form
   489,305/756,229.50 = 756,229.50/x
3. Step 3: Cross multiply
   489,305x = 756,229.50 × 756,229.50
4. Step 4: Simplify right side
   489,305x = 571,883,056,670.25
5. Step 5: Solve for x
   x = 571,883,056,670.25/489,305
6. Step 6: Final answer
   x = 1,168,766.02