Finding the Third Proportional to 42,446.25 and 89,538.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,446.25 : 89,538.75 = 89,538.75 : x
2. Step 2: Convert to fraction form
   42,446.25/89,538.75 = 89,538.75/x
3. Step 3: Cross multiply
   42,446.25x = 89,538.75 × 89,538.75
4. Step 4: Simplify right side
   42,446.25x = 8,017,187,751.56
5. Step 5: Solve for x
   x = 8,017,187,751.56/42,446.25
6. Step 6: Final answer
   x = 188,878.59