Finding the Third Proportional to 16,516 and 36,040

Step by Step Solution

1. Step 1: Write the proportion equation
   16,516 : 36,040 = 36,040 : x
2. Step 2: Convert to fraction form
   16,516/36,040 = 36,040/x
3. Step 3: Cross multiply
   16,516x = 36,040 × 36,040
4. Step 4: Simplify right side
   16,516x = 1,298,881,600
5. Step 5: Solve for x
   x = 1,298,881,600/16,516
6. Step 6: Final answer
   x = 78,643.84