Finding the Third Proportional to 9,090 and 13,715

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090 : 13,715 = 13,715 : x
2. Step 2: Convert to fraction form
   9,090/13,715 = 13,715/x
3. Step 3: Cross multiply
   9,090x = 13,715 × 13,715
4. Step 4: Simplify right side
   9,090x = 188,101,225
5. Step 5: Solve for x
   x = 188,101,225/9,090
6. Step 6: Final answer
   x = 20,693.20