Finding the Third Proportional to 1,689,018 and 3,715,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,018 : 3,715,836 = 3,715,836 : x
2. Step 2: Convert to fraction form
   1,689,018/3,715,836 = 3,715,836/x
3. Step 3: Cross multiply
   1,689,018x = 3,715,836 × 3,715,836
4. Step 4: Simplify right side
   1,689,018x = 13,807,437,178,896
5. Step 5: Solve for x
   x = 13,807,437,178,896/1,689,018
6. Step 6: Final answer
   x = 8,174,831.28