Finding the Third Proportional to 17,389.69 and 28,696.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,389.69 : 28,696.78 = 28,696.78 : x
2. Step 2: Convert to fraction form
   17,389.69/28,696.78 = 28,696.78/x
3. Step 3: Cross multiply
   17,389.69x = 28,696.78 × 28,696.78
4. Step 4: Simplify right side
   17,389.69x = 823,505,254.11
5. Step 5: Solve for x
   x = 823,505,254.11/17,389.69
6. Step 6: Final answer
   x = 47,355.95