Finding the Third Proportional to 28,185 and 42,189

Step by Step Solution

1. Step 1: Write the proportion equation
   28,185 : 42,189 = 42,189 : x
2. Step 2: Convert to fraction form
   28,185/42,189 = 42,189/x
3. Step 3: Cross multiply
   28,185x = 42,189 × 42,189
4. Step 4: Simplify right side
   28,185x = 1,779,911,721
5. Step 5: Solve for x
   x = 1,779,911,721/28,185
6. Step 6: Final answer
   x = 63,151.03