Finding the Third Proportional to 42,714 and 90,987

Step by Step Solution

1. Step 1: Write the proportion equation
   42,714 : 90,987 = 90,987 : x
2. Step 2: Convert to fraction form
   42,714/90,987 = 90,987/x
3. Step 3: Cross multiply
   42,714x = 90,987 × 90,987
4. Step 4: Simplify right side
   42,714x = 8,278,634,169
5. Step 5: Solve for x
   x = 8,278,634,169/42,714
6. Step 6: Final answer
   x = 193,815.47