Finding the Third Proportional to 127,264 and 287,528

Step by Step Solution

1. Step 1: Write the proportion equation
   127,264 : 287,528 = 287,528 : x
2. Step 2: Convert to fraction form
   127,264/287,528 = 287,528/x
3. Step 3: Cross multiply
   127,264x = 287,528 × 287,528
4. Step 4: Simplify right side
   127,264x = 82,672,350,784
5. Step 5: Solve for x
   x = 82,672,350,784/127,264
6. Step 6: Final answer
   x = 649,613.02