Finding the Third Proportional to 2,681,664 and 5,864,656.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,681,664 : 5,864,656.50 = 5,864,656.50 : x
2. Step 2: Convert to fraction form
   2,681,664/5,864,656.50 = 5,864,656.50/x
3. Step 3: Cross multiply
   2,681,664x = 5,864,656.50 × 5,864,656.50
4. Step 4: Simplify right side
   2,681,664x = 34,394,195,862,992.25
5. Step 5: Solve for x
   x = 34,394,195,862,992.25/2,681,664
6. Step 6: Final answer
   x = 12,825,691.76