Finding the Third Proportional to 42,456.75 and 89,970.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,456.75 : 89,970.75 = 89,970.75 : x
2. Step 2: Convert to fraction form
   42,456.75/89,970.75 = 89,970.75/x
3. Step 3: Cross multiply
   42,456.75x = 89,970.75 × 89,970.75
4. Step 4: Simplify right side
   42,456.75x = 8,094,735,855.56
5. Step 5: Solve for x
   x = 8,094,735,855.56/42,456.75
6. Step 6: Final answer
   x = 190,658.40