Finding the Third Proportional to 42,459.75 and 89,976.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,459.75 : 89,976.75 = 89,976.75 : x
2. Step 2: Convert to fraction form
   42,459.75/89,976.75 = 89,976.75/x
3. Step 3: Cross multiply
   42,459.75x = 89,976.75 × 89,976.75
4. Step 4: Simplify right side
   42,459.75x = 8,095,815,540.56
5. Step 5: Solve for x
   x = 8,095,815,540.56/42,459.75
6. Step 6: Final answer
   x = 190,670.35