Finding the Third Proportional to 127,132 and 279,156

Step by Step Solution

1. Step 1: Write the proportion equation
   127,132 : 279,156 = 279,156 : x
2. Step 2: Convert to fraction form
   127,132/279,156 = 279,156/x
3. Step 3: Cross multiply
   127,132x = 279,156 × 279,156
4. Step 4: Simplify right side
   127,132x = 77,928,072,336
5. Step 5: Solve for x
   x = 77,928,072,336/127,132
6. Step 6: Final answer
   x = 612,969.77