Finding the Third Proportional to 2,645,843 and 5,609,613

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,843 : 5,609,613 = 5,609,613 : x
2. Step 2: Convert to fraction form
   2,645,843/5,609,613 = 5,609,613/x
3. Step 3: Cross multiply
   2,645,843x = 5,609,613 × 5,609,613
4. Step 4: Simplify right side
   2,645,843x = 31,467,758,009,769
5. Step 5: Solve for x
   x = 31,467,758,009,769/2,645,843
6. Step 6: Final answer
   x = 11,893,282.41