Finding the Third Proportional to 1,051.50 and 2,103

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.50 : 2,103 = 2,103 : x
2. Step 2: Convert to fraction form
   1,051.50/2,103 = 2,103/x
3. Step 3: Cross multiply
   1,051.50x = 2,103 × 2,103
4. Step 4: Simplify right side
   1,051.50x = 4,422,609
5. Step 5: Solve for x
   x = 4,422,609/1,051.50
6. Step 6: Final answer
   x = 4,206