Finding the Third Proportional to 127,965 and 279,222

Step by Step Solution

1. Step 1: Write the proportion equation
   127,965 : 279,222 = 279,222 : x
2. Step 2: Convert to fraction form
   127,965/279,222 = 279,222/x
3. Step 3: Cross multiply
   127,965x = 279,222 × 279,222
4. Step 4: Simplify right side
   127,965x = 77,964,925,284
5. Step 5: Solve for x
   x = 77,964,925,284/127,965
6. Step 6: Final answer
   x = 609,267.58