Finding the Third Proportional to 3,918 and 5,877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,918 : 5,877.50 = 5,877.50 : x
2. Step 2: Convert to fraction form
   3,918/5,877.50 = 5,877.50/x
3. Step 3: Cross multiply
   3,918x = 5,877.50 × 5,877.50
4. Step 4: Simplify right side
   3,918x = 34,545,006.25
5. Step 5: Solve for x
   x = 34,545,006.25/3,918
6. Step 6: Final answer
   x = 8,817.00