Finding the Third Proportional to 28,170.50 and 42,167.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,170.50 : 42,167.75 = 42,167.75 : x
2. Step 2: Convert to fraction form
   28,170.50/42,167.75 = 42,167.75/x
3. Step 3: Cross multiply
   28,170.50x = 42,167.75 × 42,167.75
4. Step 4: Simplify right side
   28,170.50x = 1,778,119,140.06
5. Step 5: Solve for x
   x = 1,778,119,140.06/28,170.50
6. Step 6: Final answer
   x = 63,119.90