Finding the Third Proportional to 28,171.50 and 42,169.13

Step by Step Solution

1. Step 1: Write the proportion equation
   28,171.50 : 42,169.13 = 42,169.13 : x
2. Step 2: Convert to fraction form
   28,171.50/42,169.13 = 42,169.13/x
3. Step 3: Cross multiply
   28,171.50x = 42,169.13 × 42,169.13
4. Step 4: Simplify right side
   28,171.50x = 1,778,235,103.27
5. Step 5: Solve for x
   x = 1,778,235,103.27/28,171.50
6. Step 6: Final answer
   x = 63,121.78