Finding the Third Proportional to 199,681.50 and 434,355

Step by Step Solution

1. Step 1: Write the proportion equation
   199,681.50 : 434,355 = 434,355 : x
2. Step 2: Convert to fraction form
   199,681.50/434,355 = 434,355/x
3. Step 3: Cross multiply
   199,681.50x = 434,355 × 434,355
4. Step 4: Simplify right side
   199,681.50x = 188,664,266,025
5. Step 5: Solve for x
   x = 188,664,266,025/199,681.50
6. Step 6: Final answer
   x = 944,825.97