Finding the Third Proportional to 4,018,972 and 5,621,582

Step by Step Solution

1. Step 1: Write the proportion equation
   4,018,972 : 5,621,582 = 5,621,582 : x
2. Step 2: Convert to fraction form
   4,018,972/5,621,582 = 5,621,582/x
3. Step 3: Cross multiply
   4,018,972x = 5,621,582 × 5,621,582
4. Step 4: Simplify right side
   4,018,972x = 31,602,184,182,724
5. Step 5: Solve for x
   x = 31,602,184,182,724/4,018,972
6. Step 6: Final answer
   x = 7,863,250.65