Finding the Third Proportional to 19,388 and 41,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,388 : 41,870.50 = 41,870.50 : x
2. Step 2: Convert to fraction form
   19,388/41,870.50 = 41,870.50/x
3. Step 3: Cross multiply
   19,388x = 41,870.50 × 41,870.50
4. Step 4: Simplify right side
   19,388x = 1,753,138,770.25
5. Step 5: Solve for x
   x = 1,753,138,770.25/19,388
6. Step 6: Final answer
   x = 90,423.91