Finding the Third Proportional to 127,526 and 279,290

Step by Step Solution

1. Step 1: Write the proportion equation
   127,526 : 279,290 = 279,290 : x
2. Step 2: Convert to fraction form
   127,526/279,290 = 279,290/x
3. Step 3: Cross multiply
   127,526x = 279,290 × 279,290
4. Step 4: Simplify right side
   127,526x = 78,002,904,100
5. Step 5: Solve for x
   x = 78,002,904,100/127,526
6. Step 6: Final answer
   x = 611,662.75