Finding the Third Proportional to 12,985.31 and 17,330.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,985.31 : 17,330.63 = 17,330.63 : x
2. Step 2: Convert to fraction form
   12,985.31/17,330.63 = 17,330.63/x
3. Step 3: Cross multiply
   12,985.31x = 17,330.63 × 17,330.63
4. Step 4: Simplify right side
   12,985.31x = 300,350,562.89
5. Step 5: Solve for x
   x = 300,350,562.89/12,985.31
6. Step 6: Final answer
   x = 23,130.02