Finding the Third Proportional to 261,711 and 554,860.13

Step by Step Solution

1. Step 1: Write the proportion equation
   261,711 : 554,860.13 = 554,860.13 : x
2. Step 2: Convert to fraction form
   261,711/554,860.13 = 554,860.13/x
3. Step 3: Cross multiply
   261,711x = 554,860.13 × 554,860.13
4. Step 4: Simplify right side
   261,711x = 307,869,758,315.02
5. Step 5: Solve for x
   x = 307,869,758,315.02/261,711
6. Step 6: Final answer
   x = 1,176,373.02