Finding the Third Proportional to 368,802 and 555,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,802 : 555,799.50 = 555,799.50 : x
2. Step 2: Convert to fraction form
   368,802/555,799.50 = 555,799.50/x
3. Step 3: Cross multiply
   368,802x = 555,799.50 × 555,799.50
4. Step 4: Simplify right side
   368,802x = 308,913,084,200.25
5. Step 5: Solve for x
   x = 308,913,084,200.25/368,802
6. Step 6: Final answer
   x = 837,612.28