Finding the Third Proportional to 33,243.75 and 71,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,243.75 : 71,428.50 = 71,428.50 : x
2. Step 2: Convert to fraction form
   33,243.75/71,428.50 = 71,428.50/x
3. Step 3: Cross multiply
   33,243.75x = 71,428.50 × 71,428.50
4. Step 4: Simplify right side
   33,243.75x = 5,102,030,612.25
5. Step 5: Solve for x
   x = 5,102,030,612.25/33,243.75
6. Step 6: Final answer
   x = 153,473.38