Finding the Third Proportional to 9,308 and 13,430

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308 : 13,430 = 13,430 : x
2. Step 2: Convert to fraction form
   9,308/13,430 = 13,430/x
3. Step 3: Cross multiply
   9,308x = 13,430 × 13,430
4. Step 4: Simplify right side
   9,308x = 180,364,900
5. Step 5: Solve for x
   x = 180,364,900/9,308
6. Step 6: Final answer
   x = 19,377.41