Finding the Third Proportional to 13,090 and 28,287

Step by Step Solution

1. Step 1: Write the proportion equation
   13,090 : 28,287 = 28,287 : x
2. Step 2: Convert to fraction form
   13,090/28,287 = 28,287/x
3. Step 3: Cross multiply
   13,090x = 28,287 × 28,287
4. Step 4: Simplify right side
   13,090x = 800,154,369
5. Step 5: Solve for x
   x = 800,154,369/13,090
6. Step 6: Final answer
   x = 61,127.15