Finding the Third Proportional to 17,623.50 and 38,406

Step by Step Solution

1. Step 1: Write the proportion equation
   17,623.50 : 38,406 = 38,406 : x
2. Step 2: Convert to fraction form
   17,623.50/38,406 = 38,406/x
3. Step 3: Cross multiply
   17,623.50x = 38,406 × 38,406
4. Step 4: Simplify right side
   17,623.50x = 1,475,020,836
5. Step 5: Solve for x
   x = 1,475,020,836/17,623.50
6. Step 6: Final answer
   x = 83,696.25