Finding the Third Proportional to 19,910.81 and 29,911.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,910.81 : 29,911.78 = 29,911.78 : x
2. Step 2: Convert to fraction form
   19,910.81/29,911.78 = 29,911.78/x
3. Step 3: Cross multiply
   19,910.81x = 29,911.78 × 29,911.78
4. Step 4: Simplify right side
   19,910.81x = 894,714,657.55
5. Step 5: Solve for x
   x = 894,714,657.55/19,910.81
6. Step 6: Final answer
   x = 44,936.12