Finding the Third Proportional to 360,669 and 562,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   360,669 : 562,839.50 = 562,839.50 : x
2. Step 2: Convert to fraction form
   360,669/562,839.50 = 562,839.50/x
3. Step 3: Cross multiply
   360,669x = 562,839.50 × 562,839.50
4. Step 4: Simplify right side
   360,669x = 316,788,302,760.25
5. Step 5: Solve for x
   x = 316,788,302,760.25/360,669
6. Step 6: Final answer
   x = 878,335.27