Finding the Third Proportional to 720,243 and 1,547,238

Step by Step Solution

1. Step 1: Write the proportion equation
   720,243 : 1,547,238 = 1,547,238 : x
2. Step 2: Convert to fraction form
   720,243/1,547,238 = 1,547,238/x
3. Step 3: Cross multiply
   720,243x = 1,547,238 × 1,547,238
4. Step 4: Simplify right side
   720,243x = 2,393,945,428,644
5. Step 5: Solve for x
   x = 2,393,945,428,644/720,243
6. Step 6: Final answer
   x = 3,323,802.42