Finding the Third Proportional to 7,881 and 12,334.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,881 : 12,334.50 = 12,334.50 : x
2. Step 2: Convert to fraction form
   7,881/12,334.50 = 12,334.50/x
3. Step 3: Cross multiply
   7,881x = 12,334.50 × 12,334.50
4. Step 4: Simplify right side
   7,881x = 152,139,890.25
5. Step 5: Solve for x
   x = 152,139,890.25/7,881
6. Step 6: Final answer
   x = 19,304.64