Finding the Third Proportional to 1,238,540 and 1,914,169

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,540 : 1,914,169 = 1,914,169 : x
2. Step 2: Convert to fraction form
   1,238,540/1,914,169 = 1,914,169/x
3. Step 3: Cross multiply
   1,238,540x = 1,914,169 × 1,914,169
4. Step 4: Simplify right side
   1,238,540x = 3,664,042,960,561
5. Step 5: Solve for x
   x = 3,664,042,960,561/1,238,540
6. Step 6: Final answer
   x = 2,958,356.58