Finding the Third Proportional to 20,100.38 and 42,455.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,100.38 : 42,455.25 = 42,455.25 : x
2. Step 2: Convert to fraction form
   20,100.38/42,455.25 = 42,455.25/x
3. Step 3: Cross multiply
   20,100.38x = 42,455.25 × 42,455.25
4. Step 4: Simplify right side
   20,100.38x = 1,802,448,252.56
5. Step 5: Solve for x
   x = 1,802,448,252.56/20,100.38
6. Step 6: Final answer
   x = 89,672.37