Finding the Third Proportional to 1,188,246 and 1,788,048

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,246 : 1,788,048 = 1,788,048 : x
2. Step 2: Convert to fraction form
   1,188,246/1,788,048 = 1,788,048/x
3. Step 3: Cross multiply
   1,188,246x = 1,788,048 × 1,788,048
4. Step 4: Simplify right side
   1,188,246x = 3,197,115,650,304
5. Step 5: Solve for x
   x = 3,197,115,650,304/1,188,246
6. Step 6: Final answer
   x = 2,690,617.64