Finding the Third Proportional to 637,364 and 1,399,144

Step by Step Solution

1. Step 1: Write the proportion equation
   637,364 : 1,399,144 = 1,399,144 : x
2. Step 2: Convert to fraction form
   637,364/1,399,144 = 1,399,144/x
3. Step 3: Cross multiply
   637,364x = 1,399,144 × 1,399,144
4. Step 4: Simplify right side
   637,364x = 1,957,603,932,736
5. Step 5: Solve for x
   x = 1,957,603,932,736/637,364
6. Step 6: Final answer
   x = 3,071,406.50