Finding the Third Proportional to 27,856 and 42,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,856 : 42,020.50 = 42,020.50 : x
2. Step 2: Convert to fraction form
   27,856/42,020.50 = 42,020.50/x
3. Step 3: Cross multiply
   27,856x = 42,020.50 × 42,020.50
4. Step 4: Simplify right side
   27,856x = 1,765,722,420.25
5. Step 5: Solve for x
   x = 1,765,722,420.25/27,856
6. Step 6: Final answer
   x = 63,387.51