Finding the Third Proportional to 8,007,558 and 12,409,503

Step by Step Solution

1. Step 1: Write the proportion equation
   8,007,558 : 12,409,503 = 12,409,503 : x
2. Step 2: Convert to fraction form
   8,007,558/12,409,503 = 12,409,503/x
3. Step 3: Cross multiply
   8,007,558x = 12,409,503 × 12,409,503
4. Step 4: Simplify right side
   8,007,558x = 153,995,764,707,009
5. Step 5: Solve for x
   x = 153,995,764,707,009/8,007,558
6. Step 6: Final answer
   x = 19,231,301.82