Finding the Third Proportional to 99,719 and 215,092

Step by Step Solution

1. Step 1: Write the proportion equation
   99,719 : 215,092 = 215,092 : x
2. Step 2: Convert to fraction form
   99,719/215,092 = 215,092/x
3. Step 3: Cross multiply
   99,719x = 215,092 × 215,092
4. Step 4: Simplify right side
   99,719x = 46,264,568,464
5. Step 5: Solve for x
   x = 46,264,568,464/99,719
6. Step 6: Final answer
   x = 463,949.38