Finding the Third Proportional to 28,672.50 and 42,162.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,672.50 : 42,162.75 = 42,162.75 : x
2. Step 2: Convert to fraction form
   28,672.50/42,162.75 = 42,162.75/x
3. Step 3: Cross multiply
   28,672.50x = 42,162.75 × 42,162.75
4. Step 4: Simplify right side
   28,672.50x = 1,777,697,487.56
5. Step 5: Solve for x
   x = 1,777,697,487.56/28,672.50
6. Step 6: Final answer
   x = 62,000.09