Finding the Third Proportional to 8,808.75 and 13,663.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,808.75 : 13,663.69 = 13,663.69 : x
2. Step 2: Convert to fraction form
   8,808.75/13,663.69 = 13,663.69/x
3. Step 3: Cross multiply
   8,808.75x = 13,663.69 × 13,663.69
4. Step 4: Simplify right side
   8,808.75x = 186,696,356.10
5. Step 5: Solve for x
   x = 186,696,356.10/8,808.75
6. Step 6: Final answer
   x = 21,194.42