Finding the Third Proportional to 28,488 and 37,420

Step by Step Solution

1. Step 1: Write the proportion equation
   28,488 : 37,420 = 37,420 : x
2. Step 2: Convert to fraction form
   28,488/37,420 = 37,420/x
3. Step 3: Cross multiply
   28,488x = 37,420 × 37,420
4. Step 4: Simplify right side
   28,488x = 1,400,256,400
5. Step 5: Solve for x
   x = 1,400,256,400/28,488
6. Step 6: Final answer
   x = 49,152.50