Finding the Third Proportional to 200,434.50 and 433,998

Step by Step Solution

1. Step 1: Write the proportion equation
   200,434.50 : 433,998 = 433,998 : x
2. Step 2: Convert to fraction form
   200,434.50/433,998 = 433,998/x
3. Step 3: Cross multiply
   200,434.50x = 433,998 × 433,998
4. Step 4: Simplify right side
   200,434.50x = 188,354,264,004
5. Step 5: Solve for x
   x = 188,354,264,004/200,434.50
6. Step 6: Final answer
   x = 939,729.76