Finding the Third Proportional to 20,911.50 and 29,810

Step by Step Solution

1. Step 1: Write the proportion equation
   20,911.50 : 29,810 = 29,810 : x
2. Step 2: Convert to fraction form
   20,911.50/29,810 = 29,810/x
3. Step 3: Cross multiply
   20,911.50x = 29,810 × 29,810
4. Step 4: Simplify right side
   20,911.50x = 888,636,100
5. Step 5: Solve for x
   x = 888,636,100/20,911.50
6. Step 6: Final answer
   x = 42,495.09