Finding the Third Proportional to 19,213.88 and 39,384.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,213.88 : 39,384.56 = 39,384.56 : x
2. Step 2: Convert to fraction form
   19,213.88/39,384.56 = 39,384.56/x
3. Step 3: Cross multiply
   19,213.88x = 39,384.56 × 39,384.56
4. Step 4: Simplify right side
   19,213.88x = 1,551,143,763.32
5. Step 5: Solve for x
   x = 1,551,143,763.32/19,213.88
6. Step 6: Final answer
   x = 80,730.40