Finding the Third Proportional to 20,460.50 and 42,986

Step by Step Solution

1. Step 1: Write the proportion equation
   20,460.50 : 42,986 = 42,986 : x
2. Step 2: Convert to fraction form
   20,460.50/42,986 = 42,986/x
3. Step 3: Cross multiply
   20,460.50x = 42,986 × 42,986
4. Step 4: Simplify right side
   20,460.50x = 1,847,796,196
5. Step 5: Solve for x
   x = 1,847,796,196/20,460.50
6. Step 6: Final answer
   x = 90,310.41