Finding the Third Proportional to 1,238,663 and 1,914,348

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,663 : 1,914,348 = 1,914,348 : x
2. Step 2: Convert to fraction form
   1,238,663/1,914,348 = 1,914,348/x
3. Step 3: Cross multiply
   1,238,663x = 1,914,348 × 1,914,348
4. Step 4: Simplify right side
   1,238,663x = 3,664,728,265,104
5. Step 5: Solve for x
   x = 3,664,728,265,104/1,238,663
6. Step 6: Final answer
   x = 2,958,616.08