Finding the Third Proportional to 123,510 and 266,073

Step by Step Solution

1. Step 1: Write the proportion equation
   123,510 : 266,073 = 266,073 : x
2. Step 2: Convert to fraction form
   123,510/266,073 = 266,073/x
3. Step 3: Cross multiply
   123,510x = 266,073 × 266,073
4. Step 4: Simplify right side
   123,510x = 70,794,841,329
5. Step 5: Solve for x
   x = 70,794,841,329/123,510
6. Step 6: Final answer
   x = 573,191.17