Finding the Third Proportional to 31,871 and 46,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,871 : 46,878.50 = 46,878.50 : x
2. Step 2: Convert to fraction form
   31,871/46,878.50 = 46,878.50/x
3. Step 3: Cross multiply
   31,871x = 46,878.50 × 46,878.50
4. Step 4: Simplify right side
   31,871x = 2,197,593,762.25
5. Step 5: Solve for x
   x = 2,197,593,762.25/31,871
6. Step 6: Final answer
   x = 68,952.77