Finding the Third Proportional to 49,351.50 and 112,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,351.50 : 112,990.50 = 112,990.50 : x
2. Step 2: Convert to fraction form
   49,351.50/112,990.50 = 112,990.50/x
3. Step 3: Cross multiply
   49,351.50x = 112,990.50 × 112,990.50
4. Step 4: Simplify right side
   49,351.50x = 12,766,853,090.25
5. Step 5: Solve for x
   x = 12,766,853,090.25/49,351.50
6. Step 6: Final answer
   x = 258,692.30