Finding the Third Proportional to 258,255.50 and 562,255

Step by Step Solution

1. Step 1: Write the proportion equation
   258,255.50 : 562,255 = 562,255 : x
2. Step 2: Convert to fraction form
   258,255.50/562,255 = 562,255/x
3. Step 3: Cross multiply
   258,255.50x = 562,255 × 562,255
4. Step 4: Simplify right side
   258,255.50x = 316,130,685,025
5. Step 5: Solve for x
   x = 316,130,685,025/258,255.50
6. Step 6: Final answer
   x = 1,224,100.49