Finding the Third Proportional to 20,434.78 and 49,412.53

Step by Step Solution

1. Step 1: Write the proportion equation
   20,434.78 : 49,412.53 = 49,412.53 : x
2. Step 2: Convert to fraction form
   20,434.78/49,412.53 = 49,412.53/x
3. Step 3: Cross multiply
   20,434.78x = 49,412.53 × 49,412.53
4. Step 4: Simplify right side
   20,434.78x = 2,441,598,244.53
5. Step 5: Solve for x
   x = 2,441,598,244.53/20,434.78
6. Step 6: Final answer
   x = 119,482.48