Finding the Third Proportional to 123,154 and 266,550

Step by Step Solution

1. Step 1: Write the proportion equation
   123,154 : 266,550 = 266,550 : x
2. Step 2: Convert to fraction form
   123,154/266,550 = 266,550/x
3. Step 3: Cross multiply
   123,154x = 266,550 × 266,550
4. Step 4: Simplify right side
   123,154x = 71,048,902,500
5. Step 5: Solve for x
   x = 71,048,902,500/123,154
6. Step 6: Final answer
   x = 576,911.04