Finding the Third Proportional to 127,542.94 and 278,047.69

Step by Step Solution

1. Step 1: Write the proportion equation
   127,542.94 : 278,047.69 = 278,047.69 : x
2. Step 2: Convert to fraction form
   127,542.94/278,047.69 = 278,047.69/x
3. Step 3: Cross multiply
   127,542.94x = 278,047.69 × 278,047.69
4. Step 4: Simplify right side
   127,542.94x = 77,310,516,524.10
5. Step 5: Solve for x
   x = 77,310,516,524.10/127,542.94
6. Step 6: Final answer
   x = 606,152.86