Finding the Third Proportional to 19,392 and 41,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,392 : 41,878.50 = 41,878.50 : x
2. Step 2: Convert to fraction form
   19,392/41,878.50 = 41,878.50/x
3. Step 3: Cross multiply
   19,392x = 41,878.50 × 41,878.50
4. Step 4: Simplify right side
   19,392x = 1,753,808,762.25
5. Step 5: Solve for x
   x = 1,753,808,762.25/19,392
6. Step 6: Final answer
   x = 90,439.81