Finding the Third Proportional to 123,012.75 and 266,427

Step by Step Solution

1. Step 1: Write the proportion equation
   123,012.75 : 266,427 = 266,427 : x
2. Step 2: Convert to fraction form
   123,012.75/266,427 = 266,427/x
3. Step 3: Cross multiply
   123,012.75x = 266,427 × 266,427
4. Step 4: Simplify right side
   123,012.75x = 70,983,346,329
5. Step 5: Solve for x
   x = 70,983,346,329/123,012.75
6. Step 6: Final answer
   x = 577,040.56