Finding the Third Proportional to 1,765.55 and 4,789.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,765.55 : 4,789.76 = 4,789.76 : x
2. Step 2: Convert to fraction form
   1,765.55/4,789.76 = 4,789.76/x
3. Step 3: Cross multiply
   1,765.55x = 4,789.76 × 4,789.76
4. Step 4: Simplify right side
   1,765.55x = 22,941,779.90
5. Step 5: Solve for x
   x = 22,941,779.90/1,765.55
6. Step 6: Final answer
   x = 12,994.15