Finding the Third Proportional to 236,890 and 518,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,890 : 518,064.50 = 518,064.50 : x
2. Step 2: Convert to fraction form
   236,890/518,064.50 = 518,064.50/x
3. Step 3: Cross multiply
   236,890x = 518,064.50 × 518,064.50
4. Step 4: Simplify right side
   236,890x = 268,390,826,160.25
5. Step 5: Solve for x
   x = 268,390,826,160.25/236,890
6. Step 6: Final answer
   x = 1,132,976.60