Finding the Third Proportional to 1,386,432 and 1,854,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386,432 : 1,854,456 = 1,854,456 : x
2. Step 2: Convert to fraction form
   1,386,432/1,854,456 = 1,854,456/x
3. Step 3: Cross multiply
   1,386,432x = 1,854,456 × 1,854,456
4. Step 4: Simplify right side
   1,386,432x = 3,439,007,055,936
5. Step 5: Solve for x
   x = 3,439,007,055,936/1,386,432
6. Step 6: Final answer
   x = 2,480,472.94