Finding the Third Proportional to 5,425,210 and 8,392,921

Step by Step Solution

1. Step 1: Write the proportion equation
   5,425,210 : 8,392,921 = 8,392,921 : x
2. Step 2: Convert to fraction form
   5,425,210/8,392,921 = 8,392,921/x
3. Step 3: Cross multiply
   5,425,210x = 8,392,921 × 8,392,921
4. Step 4: Simplify right side
   5,425,210x = 70,441,122,912,241
5. Step 5: Solve for x
   x = 70,441,122,912,241/5,425,210
6. Step 6: Final answer
   x = 12,984,036.18