Finding the Third Proportional to 5,656.31 and 8,315.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,656.31 : 8,315.06 = 8,315.06 : x
2. Step 2: Convert to fraction form
   5,656.31/8,315.06 = 8,315.06/x
3. Step 3: Cross multiply
   5,656.31x = 8,315.06 × 8,315.06
4. Step 4: Simplify right side
   5,656.31x = 69,140,264.38
5. Step 5: Solve for x
   x = 69,140,264.38/5,656.31
6. Step 6: Final answer
   x = 12,223.56