Finding the Third Proportional to 19,310.50 and 42,311.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,310.50 : 42,311.75 = 42,311.75 : x
2. Step 2: Convert to fraction form
   19,310.50/42,311.75 = 42,311.75/x
3. Step 3: Cross multiply
   19,310.50x = 42,311.75 × 42,311.75
4. Step 4: Simplify right side
   19,310.50x = 1,790,284,188.06
5. Step 5: Solve for x
   x = 1,790,284,188.06/19,310.50
6. Step 6: Final answer
   x = 92,710.40