Finding the Third Proportional to 12,846,672 and 18,915,156

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846,672 : 18,915,156 = 18,915,156 : x
2. Step 2: Convert to fraction form
   12,846,672/18,915,156 = 18,915,156/x
3. Step 3: Cross multiply
   12,846,672x = 18,915,156 × 18,915,156
4. Step 4: Simplify right side
   12,846,672x = 357,783,126,504,336
5. Step 5: Solve for x
   x = 357,783,126,504,336/12,846,672
6. Step 6: Final answer
   x = 27,850,257.76