Finding the Third Proportional to 28,879 and 63,272

Step by Step Solution

1. Step 1: Write the proportion equation
   28,879 : 63,272 = 63,272 : x
2. Step 2: Convert to fraction form
   28,879/63,272 = 63,272/x
3. Step 3: Cross multiply
   28,879x = 63,272 × 63,272
4. Step 4: Simplify right side
   28,879x = 4,003,345,984
5. Step 5: Solve for x
   x = 4,003,345,984/28,879
6. Step 6: Final answer
   x = 138,624.81