Finding the Third Proportional to 38,890.50 and 91,519.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,890.50 : 91,519.50 = 91,519.50 : x
2. Step 2: Convert to fraction form
   38,890.50/91,519.50 = 91,519.50/x
3. Step 3: Cross multiply
   38,890.50x = 91,519.50 × 91,519.50
4. Step 4: Simplify right side
   38,890.50x = 8,375,818,880.25
5. Step 5: Solve for x
   x = 8,375,818,880.25/38,890.50
6. Step 6: Final answer
   x = 215,369.28