Finding the Third Proportional to 8,851.50 and 19,312.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,851.50 : 19,312.88 = 19,312.88 : x
2. Step 2: Convert to fraction form
   8,851.50/19,312.88 = 19,312.88/x
3. Step 3: Cross multiply
   8,851.50x = 19,312.88 × 19,312.88
4. Step 4: Simplify right side
   8,851.50x = 372,987,140.77
5. Step 5: Solve for x
   x = 372,987,140.77/8,851.50
6. Step 6: Final answer
   x = 42,138.30