Finding the Third Proportional to 9,912.50 and 13,592.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,912.50 : 13,592.50 = 13,592.50 : x
2. Step 2: Convert to fraction form
   9,912.50/13,592.50 = 13,592.50/x
3. Step 3: Cross multiply
   9,912.50x = 13,592.50 × 13,592.50
4. Step 4: Simplify right side
   9,912.50x = 184,756,056.25
5. Step 5: Solve for x
   x = 184,756,056.25/9,912.50
6. Step 6: Final answer
   x = 18,638.69