Finding the Third Proportional to 3,989,594 and 8,262,976

Step by Step Solution

1. Step 1: Write the proportion equation
   3,989,594 : 8,262,976 = 8,262,976 : x
2. Step 2: Convert to fraction form
   3,989,594/8,262,976 = 8,262,976/x
3. Step 3: Cross multiply
   3,989,594x = 8,262,976 × 8,262,976
4. Step 4: Simplify right side
   3,989,594x = 68,276,772,376,576
5. Step 5: Solve for x
   x = 68,276,772,376,576/3,989,594
6. Step 6: Final answer
   x = 17,113,714.42