Finding the Third Proportional to 1,657.69 and 2,563.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,657.69 : 2,563.31 = 2,563.31 : x
2. Step 2: Convert to fraction form
   1,657.69/2,563.31 = 2,563.31/x
3. Step 3: Cross multiply
   1,657.69x = 2,563.31 × 2,563.31
4. Step 4: Simplify right side
   1,657.69x = 6,570,570.97
5. Step 5: Solve for x
   x = 6,570,570.97/1,657.69
6. Step 6: Final answer
   x = 3,963.70