Finding the Third Proportional to 123,610.50 and 266,418

Step by Step Solution

1. Step 1: Write the proportion equation
   123,610.50 : 266,418 = 266,418 : x
2. Step 2: Convert to fraction form
   123,610.50/266,418 = 266,418/x
3. Step 3: Cross multiply
   123,610.50x = 266,418 × 266,418
4. Step 4: Simplify right side
   123,610.50x = 70,978,550,724
5. Step 5: Solve for x
   x = 70,978,550,724/123,610.50
6. Step 6: Final answer
   x = 574,211.34