Finding the Third Proportional to 1,238,421 and 2,510,116

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,421 : 2,510,116 = 2,510,116 : x
2. Step 2: Convert to fraction form
   1,238,421/2,510,116 = 2,510,116/x
3. Step 3: Cross multiply
   1,238,421x = 2,510,116 × 2,510,116
4. Step 4: Simplify right side
   1,238,421x = 6,300,682,333,456
5. Step 5: Solve for x
   x = 6,300,682,333,456/1,238,421
6. Step 6: Final answer
   x = 5,087,674.01