Finding the Third Proportional to 2,643,614 and 4,201,623

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643,614 : 4,201,623 = 4,201,623 : x
2. Step 2: Convert to fraction form
   2,643,614/4,201,623 = 4,201,623/x
3. Step 3: Cross multiply
   2,643,614x = 4,201,623 × 4,201,623
4. Step 4: Simplify right side
   2,643,614x = 17,653,635,834,129
5. Step 5: Solve for x
   x = 17,653,635,834,129/2,643,614
6. Step 6: Final answer
   x = 6,677,841.71