Finding the Third Proportional to 8,162,860 and 12,740,550

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162,860 : 12,740,550 = 12,740,550 : x
2. Step 2: Convert to fraction form
   8,162,860/12,740,550 = 12,740,550/x
3. Step 3: Cross multiply
   8,162,860x = 12,740,550 × 12,740,550
4. Step 4: Simplify right side
   8,162,860x = 162,321,614,302,500
5. Step 5: Solve for x
   x = 162,321,614,302,500/8,162,860
6. Step 6: Final answer
   x = 19,885,385.06