Finding the Third Proportional to 123,056.25 and 268,887.75

Step by Step Solution

1. Step 1: Write the proportion equation
   123,056.25 : 268,887.75 = 268,887.75 : x
2. Step 2: Convert to fraction form
   123,056.25/268,887.75 = 268,887.75/x
3. Step 3: Cross multiply
   123,056.25x = 268,887.75 × 268,887.75
4. Step 4: Simplify right side
   123,056.25x = 72,300,622,100.06
5. Step 5: Solve for x
   x = 72,300,622,100.06/123,056.25
6. Step 6: Final answer
   x = 587,541.24