Finding the Third Proportional to 1,188,238 and 1,788,031

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,238 : 1,788,031 = 1,788,031 : x
2. Step 2: Convert to fraction form
   1,188,238/1,788,031 = 1,788,031/x
3. Step 3: Cross multiply
   1,188,238x = 1,788,031 × 1,788,031
4. Step 4: Simplify right side
   1,188,238x = 3,197,054,856,961
5. Step 5: Solve for x
   x = 3,197,054,856,961/1,188,238
6. Step 6: Final answer
   x = 2,690,584.59