Finding the Third Proportional to 2,535,618 and 5,638,164

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535,618 : 5,638,164 = 5,638,164 : x
2. Step 2: Convert to fraction form
   2,535,618/5,638,164 = 5,638,164/x
3. Step 3: Cross multiply
   2,535,618x = 5,638,164 × 5,638,164
4. Step 4: Simplify right side
   2,535,618x = 31,788,893,290,896
5. Step 5: Solve for x
   x = 31,788,893,290,896/2,535,618
6. Step 6: Final answer
   x = 12,536,941.01