Finding the Third Proportional to 367,476 and 551,216

Step by Step Solution

1. Step 1: Write the proportion equation
   367,476 : 551,216 = 551,216 : x
2. Step 2: Convert to fraction form
   367,476/551,216 = 551,216/x
3. Step 3: Cross multiply
   367,476x = 551,216 × 551,216
4. Step 4: Simplify right side
   367,476x = 303,839,078,656
5. Step 5: Solve for x
   x = 303,839,078,656/367,476
6. Step 6: Final answer
   x = 826,827.00