Finding the Third Proportional to 19,709.50 and 42,335

Step by Step Solution

1. Step 1: Write the proportion equation
   19,709.50 : 42,335 = 42,335 : x
2. Step 2: Convert to fraction form
   19,709.50/42,335 = 42,335/x
3. Step 3: Cross multiply
   19,709.50x = 42,335 × 42,335
4. Step 4: Simplify right side
   19,709.50x = 1,792,252,225
5. Step 5: Solve for x
   x = 1,792,252,225/19,709.50
6. Step 6: Final answer
   x = 90,933.42