Finding the Third Proportional to 2,578,210 and 5,529,476

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,210 : 5,529,476 = 5,529,476 : x
2. Step 2: Convert to fraction form
   2,578,210/5,529,476 = 5,529,476/x
3. Step 3: Cross multiply
   2,578,210x = 5,529,476 × 5,529,476
4. Step 4: Simplify right side
   2,578,210x = 30,575,104,834,576
5. Step 5: Solve for x
   x = 30,575,104,834,576/2,578,210
6. Step 6: Final answer
   x = 11,859,043.61