Finding the Third Proportional to 354,463.50 and 764,583

Step by Step Solution

1. Step 1: Write the proportion equation
   354,463.50 : 764,583 = 764,583 : x
2. Step 2: Convert to fraction form
   354,463.50/764,583 = 764,583/x
3. Step 3: Cross multiply
   354,463.50x = 764,583 × 764,583
4. Step 4: Simplify right side
   354,463.50x = 584,587,163,889
5. Step 5: Solve for x
   x = 584,587,163,889/354,463.50
6. Step 6: Final answer
   x = 1,649,216.81