Finding the Third Proportional to 21,288,638 and 33,357,171

Step by Step Solution

1. Step 1: Write the proportion equation
   21,288,638 : 33,357,171 = 33,357,171 : x
2. Step 2: Convert to fraction form
   21,288,638/33,357,171 = 33,357,171/x
3. Step 3: Cross multiply
   21,288,638x = 33,357,171 × 33,357,171
4. Step 4: Simplify right side
   21,288,638x = 1,112,700,857,123,241
5. Step 5: Solve for x
   x = 1,112,700,857,123,241/21,288,638
6. Step 6: Final answer
   x = 52,267,357.69