Finding the Third Proportional to 8,681,524 and 12,771,390

Step by Step Solution

1. Step 1: Write the proportion equation
   8,681,524 : 12,771,390 = 12,771,390 : x
2. Step 2: Convert to fraction form
   8,681,524/12,771,390 = 12,771,390/x
3. Step 3: Cross multiply
   8,681,524x = 12,771,390 × 12,771,390
4. Step 4: Simplify right side
   8,681,524x = 163,108,402,532,100
5. Step 5: Solve for x
   x = 163,108,402,532,100/8,681,524
6. Step 6: Final answer
   x = 18,787,991.89