Finding the Third Proportional to 1,380,458 and 2,827,840

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,458 : 2,827,840 = 2,827,840 : x
2. Step 2: Convert to fraction form
   1,380,458/2,827,840 = 2,827,840/x
3. Step 3: Cross multiply
   1,380,458x = 2,827,840 × 2,827,840
4. Step 4: Simplify right side
   1,380,458x = 7,996,679,065,600
5. Step 5: Solve for x
   x = 7,996,679,065,600/1,380,458
6. Step 6: Final answer
   x = 5,792,772.45