Finding the Third Proportional to 4,359,538 and 7,178,435

Step by Step Solution

1. Step 1: Write the proportion equation
   4,359,538 : 7,178,435 = 7,178,435 : x
2. Step 2: Convert to fraction form
   4,359,538/7,178,435 = 7,178,435/x
3. Step 3: Cross multiply
   4,359,538x = 7,178,435 × 7,178,435
4. Step 4: Simplify right side
   4,359,538x = 51,529,929,049,225
5. Step 5: Solve for x
   x = 51,529,929,049,225/4,359,538
6. Step 6: Final answer
   x = 11,820,043.56