Finding the Third Proportional to 648,238 and 1,400,338

Step by Step Solution

1. Step 1: Write the proportion equation
   648,238 : 1,400,338 = 1,400,338 : x
2. Step 2: Convert to fraction form
   648,238/1,400,338 = 1,400,338/x
3. Step 3: Cross multiply
   648,238x = 1,400,338 × 1,400,338
4. Step 4: Simplify right side
   648,238x = 1,960,946,514,244
5. Step 5: Solve for x
   x = 1,960,946,514,244/648,238
6. Step 6: Final answer
   x = 3,025,040.98