Finding the Third Proportional to 1,590.75 and 4,300.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.75 : 4,300.88 = 4,300.88 : x
2. Step 2: Convert to fraction form
   1,590.75/4,300.88 = 4,300.88/x
3. Step 3: Cross multiply
   1,590.75x = 4,300.88 × 4,300.88
4. Step 4: Simplify right side
   1,590.75x = 18,497,525.77
5. Step 5: Solve for x
   x = 18,497,525.77/1,590.75
6. Step 6: Final answer
   x = 11,628.18