Finding the Third Proportional to 16,428 and 25,276.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,428 : 25,276.50 = 25,276.50 : x
2. Step 2: Convert to fraction form
   16,428/25,276.50 = 25,276.50/x
3. Step 3: Cross multiply
   16,428x = 25,276.50 × 25,276.50
4. Step 4: Simplify right side
   16,428x = 638,901,452.25
5. Step 5: Solve for x
   x = 638,901,452.25/16,428
6. Step 6: Final answer
   x = 38,891.01