Finding the Third Proportional to 7,911 and 14,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,911 : 14,665.50 = 14,665.50 : x
2. Step 2: Convert to fraction form
   7,911/14,665.50 = 14,665.50/x
3. Step 3: Cross multiply
   7,911x = 14,665.50 × 14,665.50
4. Step 4: Simplify right side
   7,911x = 215,076,890.25
5. Step 5: Solve for x
   x = 215,076,890.25/7,911
6. Step 6: Final answer
   x = 27,187.07