Finding the Third Proportional to 19,231 and 41,742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,231 : 41,742.50 = 41,742.50 : x
2. Step 2: Convert to fraction form
   19,231/41,742.50 = 41,742.50/x
3. Step 3: Cross multiply
   19,231x = 41,742.50 × 41,742.50
4. Step 4: Simplify right side
   19,231x = 1,742,436,306.25
5. Step 5: Solve for x
   x = 1,742,436,306.25/19,231
6. Step 6: Final answer
   x = 90,605.60