Finding the Third Proportional to 7,912.50 and 12,300.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,912.50 : 12,300.75 = 12,300.75 : x
2. Step 2: Convert to fraction form
   7,912.50/12,300.75 = 12,300.75/x
3. Step 3: Cross multiply
   7,912.50x = 12,300.75 × 12,300.75
4. Step 4: Simplify right side
   7,912.50x = 151,308,450.56
5. Step 5: Solve for x
   x = 151,308,450.56/7,912.50
6. Step 6: Final answer
   x = 19,122.71