Finding the Third Proportional to 20,990.50 and 29,349.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,990.50 : 29,349.75 = 29,349.75 : x
2. Step 2: Convert to fraction form
   20,990.50/29,349.75 = 29,349.75/x
3. Step 3: Cross multiply
   20,990.50x = 29,349.75 × 29,349.75
4. Step 4: Simplify right side
   20,990.50x = 861,407,825.06
5. Step 5: Solve for x
   x = 861,407,825.06/20,990.50
6. Step 6: Final answer
   x = 41,037.99