Finding the Third Proportional to 2,557,432 and 3,818,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,432 : 3,818,640 = 3,818,640 : x
2. Step 2: Convert to fraction form
   2,557,432/3,818,640 = 3,818,640/x
3. Step 3: Cross multiply
   2,557,432x = 3,818,640 × 3,818,640
4. Step 4: Simplify right side
   2,557,432x = 14,582,011,449,600
5. Step 5: Solve for x
   x = 14,582,011,449,600/2,557,432
6. Step 6: Final answer
   x = 5,701,817.86