Finding the Third Proportional to 1,832,341 and 3,989,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,832,341 : 3,989,978 = 3,989,978 : x
2. Step 2: Convert to fraction form
   1,832,341/3,989,978 = 3,989,978/x
3. Step 3: Cross multiply
   1,832,341x = 3,989,978 × 3,989,978
4. Step 4: Simplify right side
   1,832,341x = 15,919,924,440,484
5. Step 5: Solve for x
   x = 15,919,924,440,484/1,832,341
6. Step 6: Final answer
   x = 8,688,297.89