Finding the Third Proportional to 21,832.88 and 39,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,832.88 : 39,109.50 = 39,109.50 : x
2. Step 2: Convert to fraction form
   21,832.88/39,109.50 = 39,109.50/x
3. Step 3: Cross multiply
   21,832.88x = 39,109.50 × 39,109.50
4. Step 4: Simplify right side
   21,832.88x = 1,529,552,990.25
5. Step 5: Solve for x
   x = 1,529,552,990.25/21,832.88
6. Step 6: Final answer
   x = 70,057.33