Finding the Third Proportional to 13,417.13 and 19,715.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,417.13 : 19,715.63 = 19,715.63 : x
2. Step 2: Convert to fraction form
   13,417.13/19,715.63 = 19,715.63/x
3. Step 3: Cross multiply
   13,417.13x = 19,715.63 × 19,715.63
4. Step 4: Simplify right side
   13,417.13x = 388,705,869.14
5. Step 5: Solve for x
   x = 388,705,869.14/13,417.13
6. Step 6: Final answer
   x = 28,970.88