Finding the Third Proportional to 99,029.25 and 213,843.38

Step by Step Solution

1. Step 1: Write the proportion equation
   99,029.25 : 213,843.38 = 213,843.38 : x
2. Step 2: Convert to fraction form
   99,029.25/213,843.38 = 213,843.38/x
3. Step 3: Cross multiply
   99,029.25x = 213,843.38 × 213,843.38
4. Step 4: Simplify right side
   99,029.25x = 45,728,989,031.39
5. Step 5: Solve for x
   x = 45,728,989,031.39/99,029.25
6. Step 6: Final answer
   x = 461,772.55