Finding the Third Proportional to 3,620.25 and 7,798.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,620.25 : 7,798.50 = 7,798.50 : x
2. Step 2: Convert to fraction form
   3,620.25/7,798.50 = 7,798.50/x
3. Step 3: Cross multiply
   3,620.25x = 7,798.50 × 7,798.50
4. Step 4: Simplify right side
   3,620.25x = 60,816,602.25
5. Step 5: Solve for x
   x = 60,816,602.25/3,620.25
6. Step 6: Final answer
   x = 16,799.01