Finding the Third Proportional to 1,421,514 and 3,355,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,514 : 3,355,698 = 3,355,698 : x
2. Step 2: Convert to fraction form
   1,421,514/3,355,698 = 3,355,698/x
3. Step 3: Cross multiply
   1,421,514x = 3,355,698 × 3,355,698
4. Step 4: Simplify right side
   1,421,514x = 11,260,709,067,204
5. Step 5: Solve for x
   x = 11,260,709,067,204/1,421,514
6. Step 6: Final answer
   x = 7,921,630.79