Finding the Third Proportional to 308,883 and 676,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,883 : 676,816.50 = 676,816.50 : x
2. Step 2: Convert to fraction form
   308,883/676,816.50 = 676,816.50/x
3. Step 3: Cross multiply
   308,883x = 676,816.50 × 676,816.50
4. Step 4: Simplify right side
   308,883x = 458,080,574,672.25
5. Step 5: Solve for x
   x = 458,080,574,672.25/308,883
6. Step 6: Final answer
   x = 1,483,022.94