Finding the Third Proportional to 4,923,516 and 10,238,424

Step by Step Solution

1. Step 1: Write the proportion equation
   4,923,516 : 10,238,424 = 10,238,424 : x
2. Step 2: Convert to fraction form
   4,923,516/10,238,424 = 10,238,424/x
3. Step 3: Cross multiply
   4,923,516x = 10,238,424 × 10,238,424
4. Step 4: Simplify right side
   4,923,516x = 104,825,326,003,776
5. Step 5: Solve for x
   x = 104,825,326,003,776/4,923,516
6. Step 6: Final answer
   x = 21,290,745.48