Finding the Third Proportional to 2,535,623 and 5,638,173

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535,623 : 5,638,173 = 5,638,173 : x
2. Step 2: Convert to fraction form
   2,535,623/5,638,173 = 5,638,173/x
3. Step 3: Cross multiply
   2,535,623x = 5,638,173 × 5,638,173
4. Step 4: Simplify right side
   2,535,623x = 31,788,994,777,929
5. Step 5: Solve for x
   x = 31,788,994,777,929/2,535,623
6. Step 6: Final answer
   x = 12,536,956.31