Finding the Third Proportional to 31,354 and 42,583

Step by Step Solution

1. Step 1: Write the proportion equation
   31,354 : 42,583 = 42,583 : x
2. Step 2: Convert to fraction form
   31,354/42,583 = 42,583/x
3. Step 3: Cross multiply
   31,354x = 42,583 × 42,583
4. Step 4: Simplify right side
   31,354x = 1,813,311,889
5. Step 5: Solve for x
   x = 1,813,311,889/31,354
6. Step 6: Final answer
   x = 57,833.51