Finding the Third Proportional to 1,055.53 and 1,643.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.53 : 1,643.10 = 1,643.10 : x
2. Step 2: Convert to fraction form
   1,055.53/1,643.10 = 1,643.10/x
3. Step 3: Cross multiply
   1,055.53x = 1,643.10 × 1,643.10
4. Step 4: Simplify right side
   1,055.53x = 2,699,769.91
5. Step 5: Solve for x
   x = 2,699,769.91/1,055.53
6. Step 6: Final answer
   x = 2,557.74