Finding the Third Proportional to 121,870.55 and 271,747.69

Step by Step Solution

1. Step 1: Write the proportion equation
   121,870.55 : 271,747.69 = 271,747.69 : x
2. Step 2: Convert to fraction form
   121,870.55/271,747.69 = 271,747.69/x
3. Step 3: Cross multiply
   121,870.55x = 271,747.69 × 271,747.69
4. Step 4: Simplify right side
   121,870.55x = 73,846,805,661.60
5. Step 5: Solve for x
   x = 73,846,805,661.60/121,870.55
6. Step 6: Final answer
   x = 605,944.65