Finding the Third Proportional to 6,912 and 14,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,912 : 14,143.50 = 14,143.50 : x
2. Step 2: Convert to fraction form
   6,912/14,143.50 = 14,143.50/x
3. Step 3: Cross multiply
   6,912x = 14,143.50 × 14,143.50
4. Step 4: Simplify right side
   6,912x = 200,038,592.25
5. Step 5: Solve for x
   x = 200,038,592.25/6,912
6. Step 6: Final answer
   x = 28,940.77