Finding the Third Proportional to 3,867,566.50 and 8,196,155

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867,566.50 : 8,196,155 = 8,196,155 : x
2. Step 2: Convert to fraction form
   3,867,566.50/8,196,155 = 8,196,155/x
3. Step 3: Cross multiply
   3,867,566.50x = 8,196,155 × 8,196,155
4. Step 4: Simplify right side
   3,867,566.50x = 67,176,956,784,025
5. Step 5: Solve for x
   x = 67,176,956,784,025/3,867,566.50
6. Step 6: Final answer
   x = 17,369,308.78