Finding the Third Proportional to 2,156,075 and 4,375,505

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,075 : 4,375,505 = 4,375,505 : x
2. Step 2: Convert to fraction form
   2,156,075/4,375,505 = 4,375,505/x
3. Step 3: Cross multiply
   2,156,075x = 4,375,505 × 4,375,505
4. Step 4: Simplify right side
   2,156,075x = 19,145,044,005,025
5. Step 5: Solve for x
   x = 19,145,044,005,025/2,156,075
6. Step 6: Final answer
   x = 8,879,581.65