Finding the Third Proportional to 4,923,504 and 10,238,400

Step by Step Solution

1. Step 1: Write the proportion equation
   4,923,504 : 10,238,400 = 10,238,400 : x
2. Step 2: Convert to fraction form
   4,923,504/10,238,400 = 10,238,400/x
3. Step 3: Cross multiply
   4,923,504x = 10,238,400 × 10,238,400
4. Step 4: Simplify right side
   4,923,504x = 104,824,834,560,000
5. Step 5: Solve for x
   x = 104,824,834,560,000/4,923,504
6. Step 6: Final answer
   x = 21,290,697.55