Finding the Third Proportional to 2,140,920 and 3,152,240

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,920 : 3,152,240 = 3,152,240 : x
2. Step 2: Convert to fraction form
   2,140,920/3,152,240 = 3,152,240/x
3. Step 3: Cross multiply
   2,140,920x = 3,152,240 × 3,152,240
4. Step 4: Simplify right side
   2,140,920x = 9,936,617,017,600
5. Step 5: Solve for x
   x = 9,936,617,017,600/2,140,920
6. Step 6: Final answer
   x = 4,641,283.66