Finding the Third Proportional to 1,388,225 and 2,815,087

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,225 : 2,815,087 = 2,815,087 : x
2. Step 2: Convert to fraction form
   1,388,225/2,815,087 = 2,815,087/x
3. Step 3: Cross multiply
   1,388,225x = 2,815,087 × 2,815,087
4. Step 4: Simplify right side
   1,388,225x = 7,924,714,817,569
5. Step 5: Solve for x
   x = 7,924,714,817,569/1,388,225
6. Step 6: Final answer
   x = 5,708,523.34