Finding the Third Proportional to 353,103.75 and 784,667.25

Step by Step Solution

1. Step 1: Write the proportion equation
   353,103.75 : 784,667.25 = 784,667.25 : x
2. Step 2: Convert to fraction form
   353,103.75/784,667.25 = 784,667.25/x
3. Step 3: Cross multiply
   353,103.75x = 784,667.25 × 784,667.25
4. Step 4: Simplify right side
   353,103.75x = 615,702,693,222.56
5. Step 5: Solve for x
   x = 615,702,693,222.56/353,103.75
6. Step 6: Final answer
   x = 1,743,687.78