Finding the Third Proportional to 16,490 and 38,906

Step by Step Solution

1. Step 1: Write the proportion equation
   16,490 : 38,906 = 38,906 : x
2. Step 2: Convert to fraction form
   16,490/38,906 = 38,906/x
3. Step 3: Cross multiply
   16,490x = 38,906 × 38,906
4. Step 4: Simplify right side
   16,490x = 1,513,676,836
5. Step 5: Solve for x
   x = 1,513,676,836/16,490
6. Step 6: Final answer
   x = 91,793.62