Finding the Third Proportional to 28,260 and 42,754.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,260 : 42,754.50 = 42,754.50 : x
2. Step 2: Convert to fraction form
   28,260/42,754.50 = 42,754.50/x
3. Step 3: Cross multiply
   28,260x = 42,754.50 × 42,754.50
4. Step 4: Simplify right side
   28,260x = 1,827,947,270.25
5. Step 5: Solve for x
   x = 1,827,947,270.25/28,260
6. Step 6: Final answer
   x = 64,683.20