Finding the Third Proportional to 8,636,153 and 18,468,049

Step by Step Solution

1. Step 1: Write the proportion equation
   8,636,153 : 18,468,049 = 18,468,049 : x
2. Step 2: Convert to fraction form
   8,636,153/18,468,049 = 18,468,049/x
3. Step 3: Cross multiply
   8,636,153x = 18,468,049 × 18,468,049
4. Step 4: Simplify right side
   8,636,153x = 341,068,833,866,401
5. Step 5: Solve for x
   x = 341,068,833,866,401/8,636,153
6. Step 6: Final answer
   x = 39,493,143.98