Finding the Third Proportional to 45,580 and 99,800

Step by Step Solution

1. Step 1: Write the proportion equation
   45,580 : 99,800 = 99,800 : x
2. Step 2: Convert to fraction form
   45,580/99,800 = 99,800/x
3. Step 3: Cross multiply
   45,580x = 99,800 × 99,800
4. Step 4: Simplify right side
   45,580x = 9,960,040,000
5. Step 5: Solve for x
   x = 9,960,040,000/45,580
6. Step 6: Final answer
   x = 218,517.77