Finding the Third Proportional to 42,082.50 and 90,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,082.50 : 90,724.50 = 90,724.50 : x
2. Step 2: Convert to fraction form
   42,082.50/90,724.50 = 90,724.50/x
3. Step 3: Cross multiply
   42,082.50x = 90,724.50 × 90,724.50
4. Step 4: Simplify right side
   42,082.50x = 8,230,934,900.25
5. Step 5: Solve for x
   x = 8,230,934,900.25/42,082.50
6. Step 6: Final answer
   x = 195,590.44