Finding the Third Proportional to 8,135,700 and 12,308,520

Step by Step Solution

1. Step 1: Write the proportion equation
   8,135,700 : 12,308,520 = 12,308,520 : x
2. Step 2: Convert to fraction form
   8,135,700/12,308,520 = 12,308,520/x
3. Step 3: Cross multiply
   8,135,700x = 12,308,520 × 12,308,520
4. Step 4: Simplify right side
   8,135,700x = 151,499,664,590,400
5. Step 5: Solve for x
   x = 151,499,664,590,400/8,135,700
6. Step 6: Final answer
   x = 18,621,589.36