Finding the Third Proportional to 9,130.50 and 19,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,130.50 : 19,717.50 = 19,717.50 : x
2. Step 2: Convert to fraction form
   9,130.50/19,717.50 = 19,717.50/x
3. Step 3: Cross multiply
   9,130.50x = 19,717.50 × 19,717.50
4. Step 4: Simplify right side
   9,130.50x = 388,779,806.25
5. Step 5: Solve for x
   x = 388,779,806.25/9,130.50
6. Step 6: Final answer
   x = 42,580.34