Finding the Third Proportional to 2,570,535 and 5,645,619

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570,535 : 5,645,619 = 5,645,619 : x
2. Step 2: Convert to fraction form
   2,570,535/5,645,619 = 5,645,619/x
3. Step 3: Cross multiply
   2,570,535x = 5,645,619 × 5,645,619
4. Step 4: Simplify right side
   2,570,535x = 31,873,013,893,161
5. Step 5: Solve for x
   x = 31,873,013,893,161/2,570,535
6. Step 6: Final answer
   x = 12,399,369.74