Finding the Third Proportional to 1,388,252 and 2,815,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,252 : 2,815,144 = 2,815,144 : x
2. Step 2: Convert to fraction form
   1,388,252/2,815,144 = 2,815,144/x
3. Step 3: Cross multiply
   1,388,252x = 2,815,144 × 2,815,144
4. Step 4: Simplify right side
   1,388,252x = 7,925,035,740,736
5. Step 5: Solve for x
   x = 7,925,035,740,736/1,388,252
6. Step 6: Final answer
   x = 5,708,643.49