Finding the Third Proportional to 511,443 and 802,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   511,443 : 802,300.50 = 802,300.50 : x
2. Step 2: Convert to fraction form
   511,443/802,300.50 = 802,300.50/x
3. Step 3: Cross multiply
   511,443x = 802,300.50 × 802,300.50
4. Step 4: Simplify right side
   511,443x = 643,686,092,300.25
5. Step 5: Solve for x
   x = 643,686,092,300.25/511,443
6. Step 6: Final answer
   x = 1,258,568.58