Finding the Third Proportional to 56,313 and 123,075

Step by Step Solution

1. Step 1: Write the proportion equation
   56,313 : 123,075 = 123,075 : x
2. Step 2: Convert to fraction form
   56,313/123,075 = 123,075/x
3. Step 3: Cross multiply
   56,313x = 123,075 × 123,075
4. Step 4: Simplify right side
   56,313x = 15,147,455,625
5. Step 5: Solve for x
   x = 15,147,455,625/56,313
6. Step 6: Final answer
   x = 268,986.83