Finding the Third Proportional to 103,983.75 and 212,886

Step by Step Solution

1. Step 1: Write the proportion equation
   103,983.75 : 212,886 = 212,886 : x
2. Step 2: Convert to fraction form
   103,983.75/212,886 = 212,886/x
3. Step 3: Cross multiply
   103,983.75x = 212,886 × 212,886
4. Step 4: Simplify right side
   103,983.75x = 45,320,448,996
5. Step 5: Solve for x
   x = 45,320,448,996/103,983.75
6. Step 6: Final answer
   x = 435,841.65