Finding the Third Proportional to 18,172 and 28,076

Step by Step Solution

1. Step 1: Write the proportion equation
   18,172 : 28,076 = 28,076 : x
2. Step 2: Convert to fraction form
   18,172/28,076 = 28,076/x
3. Step 3: Cross multiply
   18,172x = 28,076 × 28,076
4. Step 4: Simplify right side
   18,172x = 788,261,776
5. Step 5: Solve for x
   x = 788,261,776/18,172
6. Step 6: Final answer
   x = 43,377.82