Finding the Third Proportional to 784.31 and 1,719.38

Step by Step Solution

1. Step 1: Write the proportion equation
   784.31 : 1,719.38 = 1,719.38 : x
2. Step 2: Convert to fraction form
   784.31/1,719.38 = 1,719.38/x
3. Step 3: Cross multiply
   784.31x = 1,719.38 × 1,719.38
4. Step 4: Simplify right side
   784.31x = 2,956,250.39
5. Step 5: Solve for x
   x = 2,956,250.39/784.31
6. Step 6: Final answer
   x = 3,769.23