Finding the Third Proportional to 123,012 and 260,604

Step by Step Solution

1. Step 1: Write the proportion equation
   123,012 : 260,604 = 260,604 : x
2. Step 2: Convert to fraction form
   123,012/260,604 = 260,604/x
3. Step 3: Cross multiply
   123,012x = 260,604 × 260,604
4. Step 4: Simplify right side
   123,012x = 67,914,444,816
5. Step 5: Solve for x
   x = 67,914,444,816/123,012
6. Step 6: Final answer
   x = 552,096.09