Finding the Third Proportional to 28,478.25 and 42,714

Step by Step Solution

1. Step 1: Write the proportion equation
   28,478.25 : 42,714 = 42,714 : x
2. Step 2: Convert to fraction form
   28,478.25/42,714 = 42,714/x
3. Step 3: Cross multiply
   28,478.25x = 42,714 × 42,714
4. Step 4: Simplify right side
   28,478.25x = 1,824,485,796
5. Step 5: Solve for x
   x = 1,824,485,796/28,478.25
6. Step 6: Final answer
   x = 64,065.94