Finding the Third Proportional to 1,628.99 and 3,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.99 : 3,556.72 = 3,556.72 : x
2. Step 2: Convert to fraction form
   1,628.99/3,556.72 = 3,556.72/x
3. Step 3: Cross multiply
   1,628.99x = 3,556.72 × 3,556.72
4. Step 4: Simplify right side
   1,628.99x = 12,650,276.05
5. Step 5: Solve for x
   x = 12,650,276.05/1,628.99
6. Step 6: Final answer
   x = 7,765.70