Finding the Third Proportional to 49,818 and 74,021.25

Step by Step Solution

1. Step 1: Write the proportion equation
   49,818 : 74,021.25 = 74,021.25 : x
2. Step 2: Convert to fraction form
   49,818/74,021.25 = 74,021.25/x
3. Step 3: Cross multiply
   49,818x = 74,021.25 × 74,021.25
4. Step 4: Simplify right side
   49,818x = 5,479,145,451.56
5. Step 5: Solve for x
   x = 5,479,145,451.56/49,818
6. Step 6: Final answer
   x = 109,983.25