Finding the Third Proportional to 4,123,836 and 8,623,233

Step by Step Solution

1. Step 1: Write the proportion equation
   4,123,836 : 8,623,233 = 8,623,233 : x
2. Step 2: Convert to fraction form
   4,123,836/8,623,233 = 8,623,233/x
3. Step 3: Cross multiply
   4,123,836x = 8,623,233 × 8,623,233
4. Step 4: Simplify right side
   4,123,836x = 74,360,147,372,289
5. Step 5: Solve for x
   x = 74,360,147,372,289/4,123,836
6. Step 6: Final answer
   x = 18,031,790.64