Finding the Third Proportional to 21,112 and 33,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,112 : 33,428.50 = 33,428.50 : x
2. Step 2: Convert to fraction form
   21,112/33,428.50 = 33,428.50/x
3. Step 3: Cross multiply
   21,112x = 33,428.50 × 33,428.50
4. Step 4: Simplify right side
   21,112x = 1,117,464,612.25
5. Step 5: Solve for x
   x = 1,117,464,612.25/21,112
6. Step 6: Final answer
   x = 52,930.31