Finding the Third Proportional to 127,672.50 and 280,671

Step by Step Solution

1. Step 1: Write the proportion equation
   127,672.50 : 280,671 = 280,671 : x
2. Step 2: Convert to fraction form
   127,672.50/280,671 = 280,671/x
3. Step 3: Cross multiply
   127,672.50x = 280,671 × 280,671
4. Step 4: Simplify right side
   127,672.50x = 78,776,210,241
5. Step 5: Solve for x
   x = 78,776,210,241/127,672.50
6. Step 6: Final answer
   x = 617,017.84