Finding the Third Proportional to 8,999.86 and 19,300.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,999.86 : 19,300.78 = 19,300.78 : x
2. Step 2: Convert to fraction form
   8,999.86/19,300.78 = 19,300.78/x
3. Step 3: Cross multiply
   8,999.86x = 19,300.78 × 19,300.78
4. Step 4: Simplify right side
   8,999.86x = 372,520,156.86
5. Step 5: Solve for x
   x = 372,520,156.86/8,999.86
6. Step 6: Final answer
   x = 41,391.78