Finding the Third Proportional to 353,112.75 and 764,885.25

Step by Step Solution

1. Step 1: Write the proportion equation
   353,112.75 : 764,885.25 = 764,885.25 : x
2. Step 2: Convert to fraction form
   353,112.75/764,885.25 = 764,885.25/x
3. Step 3: Cross multiply
   353,112.75x = 764,885.25 × 764,885.25
4. Step 4: Simplify right side
   353,112.75x = 585,049,445,667.56
5. Step 5: Solve for x
   x = 585,049,445,667.56/353,112.75
6. Step 6: Final answer
   x = 1,656,834.67