Finding the Third Proportional to 31,917 and 42,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,917 : 42,934.50 = 42,934.50 : x
2. Step 2: Convert to fraction form
   31,917/42,934.50 = 42,934.50/x
3. Step 3: Cross multiply
   31,917x = 42,934.50 × 42,934.50
4. Step 4: Simplify right side
   31,917x = 1,843,371,290.25
5. Step 5: Solve for x
   x = 1,843,371,290.25/31,917
6. Step 6: Final answer
   x = 57,755.16