Finding the Third Proportional to 19,611.50 and 42,499

Step by Step Solution

1. Step 1: Write the proportion equation
   19,611.50 : 42,499 = 42,499 : x
2. Step 2: Convert to fraction form
   19,611.50/42,499 = 42,499/x
3. Step 3: Cross multiply
   19,611.50x = 42,499 × 42,499
4. Step 4: Simplify right side
   19,611.50x = 1,806,165,001
5. Step 5: Solve for x
   x = 1,806,165,001/19,611.50
6. Step 6: Final answer
   x = 92,097.24