Finding the Third Proportional to 91,719 and 200,807

Step by Step Solution

1. Step 1: Write the proportion equation
   91,719 : 200,807 = 200,807 : x
2. Step 2: Convert to fraction form
   91,719/200,807 = 200,807/x
3. Step 3: Cross multiply
   91,719x = 200,807 × 200,807
4. Step 4: Simplify right side
   91,719x = 40,323,451,249
5. Step 5: Solve for x
   x = 40,323,451,249/91,719
6. Step 6: Final answer
   x = 439,641.20