Finding the Third Proportional to 127,810 and 272,012

Step by Step Solution

1. Step 1: Write the proportion equation
   127,810 : 272,012 = 272,012 : x
2. Step 2: Convert to fraction form
   127,810/272,012 = 272,012/x
3. Step 3: Cross multiply
   127,810x = 272,012 × 272,012
4. Step 4: Simplify right side
   127,810x = 73,990,528,144
5. Step 5: Solve for x
   x = 73,990,528,144/127,810
6. Step 6: Final answer
   x = 578,910.32