Finding the Third Proportional to 17,688 and 38,499

Step by Step Solution

1. Step 1: Write the proportion equation
   17,688 : 38,499 = 38,499 : x
2. Step 2: Convert to fraction form
   17,688/38,499 = 38,499/x
3. Step 3: Cross multiply
   17,688x = 38,499 × 38,499
4. Step 4: Simplify right side
   17,688x = 1,482,173,001
5. Step 5: Solve for x
   x = 1,482,173,001/17,688
6. Step 6: Final answer
   x = 83,795.40