Finding the Third Proportional to 2,131,538 and 3,190,819

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,538 : 3,190,819 = 3,190,819 : x
2. Step 2: Convert to fraction form
   2,131,538/3,190,819 = 3,190,819/x
3. Step 3: Cross multiply
   2,131,538x = 3,190,819 × 3,190,819
4. Step 4: Simplify right side
   2,131,538x = 10,181,325,890,761
5. Step 5: Solve for x
   x = 10,181,325,890,761/2,131,538
6. Step 6: Final answer
   x = 4,776,516.25