Finding the Third Proportional to 328,995 and 495,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,995 : 495,922.50 = 495,922.50 : x
2. Step 2: Convert to fraction form
   328,995/495,922.50 = 495,922.50/x
3. Step 3: Cross multiply
   328,995x = 495,922.50 × 495,922.50
4. Step 4: Simplify right side
   328,995x = 245,939,126,006.25
5. Step 5: Solve for x
   x = 245,939,126,006.25/328,995
6. Step 6: Final answer
   x = 747,546.70