Finding the Third Proportional to 139,525.88 and 215,649

Step by Step Solution

1. Step 1: Write the proportion equation
   139,525.88 : 215,649 = 215,649 : x
2. Step 2: Convert to fraction form
   139,525.88/215,649 = 215,649/x
3. Step 3: Cross multiply
   139,525.88x = 215,649 × 215,649
4. Step 4: Simplify right side
   139,525.88x = 46,504,491,201
5. Step 5: Solve for x
   x = 46,504,491,201/139,525.88
6. Step 6: Final answer
   x = 333,303.71