Finding the Third Proportional to 1,783.76 and 2,840.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.76 : 2,840.79 = 2,840.79 : x
2. Step 2: Convert to fraction form
   1,783.76/2,840.79 = 2,840.79/x
3. Step 3: Cross multiply
   1,783.76x = 2,840.79 × 2,840.79
4. Step 4: Simplify right side
   1,783.76x = 8,070,082.50
5. Step 5: Solve for x
   x = 8,070,082.50/1,783.76
6. Step 6: Final answer
   x = 4,524.20