Finding the Third Proportional to 10,515.75 and 22,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,515.75 : 22,990.50 = 22,990.50 : x
2. Step 2: Convert to fraction form
   10,515.75/22,990.50 = 22,990.50/x
3. Step 3: Cross multiply
   10,515.75x = 22,990.50 × 22,990.50
4. Step 4: Simplify right side
   10,515.75x = 528,563,090.25
5. Step 5: Solve for x
   x = 528,563,090.25/10,515.75
6. Step 6: Final answer
   x = 50,263.95