Finding the Third Proportional to 49,297.50 and 80,490.38

Step by Step Solution

1. Step 1: Write the proportion equation
   49,297.50 : 80,490.38 = 80,490.38 : x
2. Step 2: Convert to fraction form
   49,297.50/80,490.38 = 80,490.38/x
3. Step 3: Cross multiply
   49,297.50x = 80,490.38 × 80,490.38
4. Step 4: Simplify right side
   49,297.50x = 6,478,700,467.64
5. Step 5: Solve for x
   x = 6,478,700,467.64/49,297.50
6. Step 6: Final answer
   x = 131,420.47