Finding the Third Proportional to 278,146 and 571,036

Step by Step Solution

1. Step 1: Write the proportion equation
   278,146 : 571,036 = 571,036 : x
2. Step 2: Convert to fraction form
   278,146/571,036 = 571,036/x
3. Step 3: Cross multiply
   278,146x = 571,036 × 571,036
4. Step 4: Simplify right side
   278,146x = 326,082,113,296
5. Step 5: Solve for x
   x = 326,082,113,296/278,146
6. Step 6: Final answer
   x = 1,172,341.55