Finding the Third Proportional to 1,405.69 and 2,050.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.69 : 2,050.31 = 2,050.31 : x
2. Step 2: Convert to fraction form
   1,405.69/2,050.31 = 2,050.31/x
3. Step 3: Cross multiply
   1,405.69x = 2,050.31 × 2,050.31
4. Step 4: Simplify right side
   1,405.69x = 4,203,781.35
5. Step 5: Solve for x
   x = 4,203,781.35/1,405.69
6. Step 6: Final answer
   x = 2,990.55