Finding the Third Proportional to 1,353,888 and 2,940,840

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353,888 : 2,940,840 = 2,940,840 : x
2. Step 2: Convert to fraction form
   1,353,888/2,940,840 = 2,940,840/x
3. Step 3: Cross multiply
   1,353,888x = 2,940,840 × 2,940,840
4. Step 4: Simplify right side
   1,353,888x = 8,648,539,905,600
5. Step 5: Solve for x
   x = 8,648,539,905,600/1,353,888
6. Step 6: Final answer
   x = 6,387,928.62