Finding the Third Proportional to 31,779 and 42,366

Step by Step Solution

1. Step 1: Write the proportion equation
   31,779 : 42,366 = 42,366 : x
2. Step 2: Convert to fraction form
   31,779/42,366 = 42,366/x
3. Step 3: Cross multiply
   31,779x = 42,366 × 42,366
4. Step 4: Simplify right side
   31,779x = 1,794,877,956
5. Step 5: Solve for x
   x = 1,794,877,956/31,779
6. Step 6: Final answer
   x = 56,480.00