Finding the Third Proportional to 8,681,606 and 12,771,470

Step by Step Solution

1. Step 1: Write the proportion equation
   8,681,606 : 12,771,470 = 12,771,470 : x
2. Step 2: Convert to fraction form
   8,681,606/12,771,470 = 12,771,470/x
3. Step 3: Cross multiply
   8,681,606x = 12,771,470 × 12,771,470
4. Step 4: Simplify right side
   8,681,606x = 163,110,445,960,900
5. Step 5: Solve for x
   x = 163,110,445,960,900/8,681,606
6. Step 6: Final answer
   x = 18,788,049.81