Finding the Third Proportional to 123,448 and 266,120

Step by Step Solution

1. Step 1: Write the proportion equation
   123,448 : 266,120 = 266,120 : x
2. Step 2: Convert to fraction form
   123,448/266,120 = 266,120/x
3. Step 3: Cross multiply
   123,448x = 266,120 × 266,120
4. Step 4: Simplify right side
   123,448x = 70,819,854,400
5. Step 5: Solve for x
   x = 70,819,854,400/123,448
6. Step 6: Final answer
   x = 573,681.67