Finding the Third Proportional to 1,288,158 and 2,777,244

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,158 : 2,777,244 = 2,777,244 : x
2. Step 2: Convert to fraction form
   1,288,158/2,777,244 = 2,777,244/x
3. Step 3: Cross multiply
   1,288,158x = 2,777,244 × 2,777,244
4. Step 4: Simplify right side
   1,288,158x = 7,713,084,235,536
5. Step 5: Solve for x
   x = 7,713,084,235,536/1,288,158
6. Step 6: Final answer
   x = 5,987,684.92