Finding the Third Proportional to 127,956.75 and 264,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,956.75 : 264,109.50 = 264,109.50 : x
2. Step 2: Convert to fraction form
   127,956.75/264,109.50 = 264,109.50/x
3. Step 3: Cross multiply
   127,956.75x = 264,109.50 × 264,109.50
4. Step 4: Simplify right side
   127,956.75x = 69,753,827,990.25
5. Step 5: Solve for x
   x = 69,753,827,990.25/127,956.75
6. Step 6: Final answer
   x = 545,135.98