Finding the Third Proportional to 6,654 and 10,642.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,654 : 10,642.50 = 10,642.50 : x
2. Step 2: Convert to fraction form
   6,654/10,642.50 = 10,642.50/x
3. Step 3: Cross multiply
   6,654x = 10,642.50 × 10,642.50
4. Step 4: Simplify right side
   6,654x = 113,262,806.25
5. Step 5: Solve for x
   x = 113,262,806.25/6,654
6. Step 6: Final answer
   x = 17,021.76