Finding the Third Proportional to 3,989,537 and 8,776,114

Step by Step Solution

1. Step 1: Write the proportion equation
   3,989,537 : 8,776,114 = 8,776,114 : x
2. Step 2: Convert to fraction form
   3,989,537/8,776,114 = 8,776,114/x
3. Step 3: Cross multiply
   3,989,537x = 8,776,114 × 8,776,114
4. Step 4: Simplify right side
   3,989,537x = 77,020,176,940,996
5. Step 5: Solve for x
   x = 77,020,176,940,996/3,989,537
6. Step 6: Final answer
   x = 19,305,542.71