Finding the Third Proportional to 7,274,400 and 12,123,496

Step by Step Solution

1. Step 1: Write the proportion equation
   7,274,400 : 12,123,496 = 12,123,496 : x
2. Step 2: Convert to fraction form
   7,274,400/12,123,496 = 12,123,496/x
3. Step 3: Cross multiply
   7,274,400x = 12,123,496 × 12,123,496
4. Step 4: Simplify right side
   7,274,400x = 146,979,155,262,016
5. Step 5: Solve for x
   x = 146,979,155,262,016/7,274,400
6. Step 6: Final answer
   x = 20,204,986.70