Finding the Third Proportional to 199,785.50 and 424,998

Step by Step Solution

1. Step 1: Write the proportion equation
   199,785.50 : 424,998 = 424,998 : x
2. Step 2: Convert to fraction form
   199,785.50/424,998 = 424,998/x
3. Step 3: Cross multiply
   199,785.50x = 424,998 × 424,998
4. Step 4: Simplify right side
   199,785.50x = 180,623,300,004
5. Step 5: Solve for x
   x = 180,623,300,004/199,785.50
6. Step 6: Final answer
   x = 904,086.13