Finding the Third Proportional to 330,061.50 and 495,819

Step by Step Solution

1. Step 1: Write the proportion equation
   330,061.50 : 495,819 = 495,819 : x
2. Step 2: Convert to fraction form
   330,061.50/495,819 = 495,819/x
3. Step 3: Cross multiply
   330,061.50x = 495,819 × 495,819
4. Step 4: Simplify right side
   330,061.50x = 245,836,480,761
5. Step 5: Solve for x
   x = 245,836,480,761/330,061.50
6. Step 6: Final answer
   x = 744,820.23