Finding the Third Proportional to 17,430 and 26,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,430 : 26,308.50 = 26,308.50 : x
2. Step 2: Convert to fraction form
   17,430/26,308.50 = 26,308.50/x
3. Step 3: Cross multiply
   17,430x = 26,308.50 × 26,308.50
4. Step 4: Simplify right side
   17,430x = 692,137,172.25
5. Step 5: Solve for x
   x = 692,137,172.25/17,430
6. Step 6: Final answer
   x = 39,709.53