Finding the Third Proportional to 1,421,888 and 3,158,704

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,888 : 3,158,704 = 3,158,704 : x
2. Step 2: Convert to fraction form
   1,421,888/3,158,704 = 3,158,704/x
3. Step 3: Cross multiply
   1,421,888x = 3,158,704 × 3,158,704
4. Step 4: Simplify right side
   1,421,888x = 9,977,410,959,616
5. Step 5: Solve for x
   x = 9,977,410,959,616/1,421,888
6. Step 6: Final answer
   x = 7,017,016.08