Finding the Third Proportional to 1,863,192 and 3,991,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863,192 : 3,991,980 = 3,991,980 : x
2. Step 2: Convert to fraction form
   1,863,192/3,991,980 = 3,991,980/x
3. Step 3: Cross multiply
   1,863,192x = 3,991,980 × 3,991,980
4. Step 4: Simplify right side
   1,863,192x = 15,935,904,320,400
5. Step 5: Solve for x
   x = 15,935,904,320,400/1,863,192
6. Step 6: Final answer
   x = 8,553,012.42