Finding the Third Proportional to 99,549.38 and 210,758.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,549.38 : 210,758.25 = 210,758.25 : x
2. Step 2: Convert to fraction form
   99,549.38/210,758.25 = 210,758.25/x
3. Step 3: Cross multiply
   99,549.38x = 210,758.25 × 210,758.25
4. Step 4: Simplify right side
   99,549.38x = 44,419,039,943.06
5. Step 5: Solve for x
   x = 44,419,039,943.06/99,549.38
6. Step 6: Final answer
   x = 446,201.09