Finding the Third Proportional to 275,986.75 and 411,064

Step by Step Solution

1. Step 1: Write the proportion equation
   275,986.75 : 411,064 = 411,064 : x
2. Step 2: Convert to fraction form
   275,986.75/411,064 = 411,064/x
3. Step 3: Cross multiply
   275,986.75x = 411,064 × 411,064
4. Step 4: Simplify right side
   275,986.75x = 168,973,612,096
5. Step 5: Solve for x
   x = 168,973,612,096/275,986.75
6. Step 6: Final answer
   x = 612,252.62