Finding the Third Proportional to 7,563.38 and 12,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,563.38 : 12,499.31 = 12,499.31 : x
2. Step 2: Convert to fraction form
   7,563.38/12,499.31 = 12,499.31/x
3. Step 3: Cross multiply
   7,563.38x = 12,499.31 × 12,499.31
4. Step 4: Simplify right side
   7,563.38x = 156,232,812.97
5. Step 5: Solve for x
   x = 156,232,812.97/7,563.38
6. Step 6: Final answer
   x = 20,656.49