Finding the Third Proportional to 5,581,554 and 12,018,240

Step by Step Solution

1. Step 1: Write the proportion equation
   5,581,554 : 12,018,240 = 12,018,240 : x
2. Step 2: Convert to fraction form
   5,581,554/12,018,240 = 12,018,240/x
3. Step 3: Cross multiply
   5,581,554x = 12,018,240 × 12,018,240
4. Step 4: Simplify right side
   5,581,554x = 144,438,092,697,600
5. Step 5: Solve for x
   x = 144,438,092,697,600/5,581,554
6. Step 6: Final answer
   x = 25,877,756.03