Finding the Third Proportional to 123,064 and 268,360

Step by Step Solution

1. Step 1: Write the proportion equation
   123,064 : 268,360 = 268,360 : x
2. Step 2: Convert to fraction form
   123,064/268,360 = 268,360/x
3. Step 3: Cross multiply
   123,064x = 268,360 × 268,360
4. Step 4: Simplify right side
   123,064x = 72,017,089,600
5. Step 5: Solve for x
   x = 72,017,089,600/123,064
6. Step 6: Final answer
   x = 585,200.30