Finding the Third Proportional to 99,983.50 and 211,208

Step by Step Solution

1. Step 1: Write the proportion equation
   99,983.50 : 211,208 = 211,208 : x
2. Step 2: Convert to fraction form
   99,983.50/211,208 = 211,208/x
3. Step 3: Cross multiply
   99,983.50x = 211,208 × 211,208
4. Step 4: Simplify right side
   99,983.50x = 44,608,819,264
5. Step 5: Solve for x
   x = 44,608,819,264/99,983.50
6. Step 6: Final answer
   x = 446,161.81