Finding the Third Proportional to 28,079 and 42,591

Step by Step Solution

1. Step 1: Write the proportion equation
   28,079 : 42,591 = 42,591 : x
2. Step 2: Convert to fraction form
   28,079/42,591 = 42,591/x
3. Step 3: Cross multiply
   28,079x = 42,591 × 42,591
4. Step 4: Simplify right side
   28,079x = 1,813,993,281
5. Step 5: Solve for x
   x = 1,813,993,281/28,079
6. Step 6: Final answer
   x = 64,603.20