Finding the Third Proportional to 139,056.75 and 165,300.75

Step by Step Solution

1. Step 1: Write the proportion equation
   139,056.75 : 165,300.75 = 165,300.75 : x
2. Step 2: Convert to fraction form
   139,056.75/165,300.75 = 165,300.75/x
3. Step 3: Cross multiply
   139,056.75x = 165,300.75 × 165,300.75
4. Step 4: Simplify right side
   139,056.75x = 27,324,337,950.56
5. Step 5: Solve for x
   x = 27,324,337,950.56/139,056.75
6. Step 6: Final answer
   x = 196,497.75