Finding the Third Proportional to 28,390 and 42,983

Step by Step Solution

1. Step 1: Write the proportion equation
   28,390 : 42,983 = 42,983 : x
2. Step 2: Convert to fraction form
   28,390/42,983 = 42,983/x
3. Step 3: Cross multiply
   28,390x = 42,983 × 42,983
4. Step 4: Simplify right side
   28,390x = 1,847,538,289
5. Step 5: Solve for x
   x = 1,847,538,289/28,390
6. Step 6: Final answer
   x = 65,077.08