Finding the Third Proportional to 2,645,838 and 5,609,604

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,838 : 5,609,604 = 5,609,604 : x
2. Step 2: Convert to fraction form
   2,645,838/5,609,604 = 5,609,604/x
3. Step 3: Cross multiply
   2,645,838x = 5,609,604 × 5,609,604
4. Step 4: Simplify right side
   2,645,838x = 31,467,657,036,816
5. Step 5: Solve for x
   x = 31,467,657,036,816/2,645,838
6. Step 6: Final answer
   x = 11,893,266.72