Finding the Third Proportional to 528,238 and 1,139,036

Step by Step Solution

1. Step 1: Write the proportion equation
   528,238 : 1,139,036 = 1,139,036 : x
2. Step 2: Convert to fraction form
   528,238/1,139,036 = 1,139,036/x
3. Step 3: Cross multiply
   528,238x = 1,139,036 × 1,139,036
4. Step 4: Simplify right side
   528,238x = 1,297,403,009,296
5. Step 5: Solve for x
   x = 1,297,403,009,296/528,238
6. Step 6: Final answer
   x = 2,456,095.57